ArcGIS Portfolio

Chloë Woolley

Mess-Around maps I used these maps as my ‘mess around’ maps throughout the semester, trying different analyses on them and just observing the outcome. I didn’t save very many of the analyses I tried on them, but this purple one shows that I can control symbolization and labelling of features, as well as my ability to choose which features I am symbolizing (for example, Utah’s counties are symbolized separately from the states).

This map is showing another example of my symbolization and labelling learning process, in which I manipulated the labelling parameters to omit some of the areas I didn’t want labelled. This is also where I learned to change background color and experimented with aestheticism.

In terms of self-critiquing, because there was no goal for these maps, I would give myself a 10/10

Application quiz with geothermal data

This map was intended for use by a hypothetical ‘geothermal energy company’ in Idaho who was considering buying more land. To complete this analysis, I used:

-detailed preparation to apply an excel file in ArcGIS

-set up three data frames to symbolize different analyses (these were originally meant to be made professional, but the class ran out of time)

-choropleth symbolization of population, city ‘seats’, and wells (which had to be separated from springs through the attribute table) in frame 1

-spatial and attribute queries to symbolize geothermal springs and wells within 100 miles of Boise and a discharge temperature greater than 90 degrees, in frame 2

-the buffering tool

-the intersect tool against the given area of interest, the buffer around Boise, and Ada county, populating only the output area with geothermal data, in frame 3

Self-critique: I wish I had made this map look more professional and had the opportunity to rename the data frames (whose current titles were only useful for grading). However, I think my analyses were good

and that my output would have been very useful to an actual geothermal energy company interested in purchasing the area of interest. I would give myself a 10/10

ArcScene

This map shows a manipulated view of the digital elevation model of Mt. St. Helens, post-eruption against pre-eruption. I used:

-ArcScene, with the surface floating against the DEM, to rotate the view

-correct application of base-heights

-the ‘cut-fill’ tool to appropriately symbolize area where material was lost, gained, or unchanged from pre-eruption to post-eruption (this involved raster math)

Self-critique: though the output of these analyses and symbolizations isn’t particularly aesthetic, intuitive, or professional, I accomplished the intended analyses and would give myself a 10/10

Thematic Raster Reclassification

This map shows a thematic land use raster provided by the instructor. To make this map, I used:

-the ‘reclassify’ tool to produce the 5 classes seen in the legend and symbolized on the map

-a land-use legend from the source, to identify those land-use types that would be most prone to high frog populations

-the attribute table field calculator to calculate statistics of frog-kissing danger

Self-critique: I would give myself a 10/10 on this map because the goal was to reclassify and calculate statistics; it was simple and I accomplished it

Watershed maps

These maps show the same surface under different tools, analyzing watershed characteristics as listed above the maps. I used

-the ‘fill’ tool to make sure my DEM had no sinks or holes

-the ‘flow direction’ tool to see general directions in which water would flow

-the ‘flow accumulation tool (changing the output type from ‘float’ to integer’) to see which areas would have the most water flowing through them

-the ‘stream order’ tool to see the network of streams feeding into each other

-the ‘con’ tool to threshold the stream order output to a smaller range of stream orders (much like a reclassification

-the ‘basin’ tool to symbolize the breaks in flow direction and better understand where water will flow when it falls on any specific place on the map.

Self-critique—I completed every intended analysis, but I wish I’d had time to make it look better and make it more clear what each map was trying to show. I’d give myself a 9/10

Geostatistical Analysis

This figure shows the water table of southeast Idaho as point data. To create this figure, I used:

-detailed preparation of an excel file for use in ArcGIS

-creation of a feature class

-geostatistical analysis of the point data set

-inverse distance weighting

-global polynomial interpolation

-trend analysis in multiple dimensions

Self-critique—I would give myself a 10/10, because it was a successful analytical comparison

Geologic map

This is a digitized geologic map of the western Henry Mountain area. To create this map, I used:

-georeferencing tools against a topographic basemap

-a first polynomial transformation

-feature class creation and editing tools to digitize the boundaries of the original geologic map, including differentiation of bounding lines, and point data in place of recorded strike and dip

-manipulation of topology rules

-the ‘feature to polygon’ tool

-ArcMap editor to add data to the attribute tables of my created features

-symbolization of strike and dip according to strike angle

-a graticule

-symbolization of different fault and contact types using appropriate geologic symbols

Wasatch geology and hazards map

This map was created for the use of another class who was trying to decide which houses (the small, diamond-shaped points) would be safest to live in. To make this map, I used:

-KML to layer conversion

-hillshade creation and transparent symbolization

-clipping of data to a specific frame

-an index map and location map with extent indicators

-the ‘dissolve’ tool

-symbolization of many layers of data at once, without overwhelming or concealing any necessary details

-creation and manipulation of a label

-a north arrow

-inclusion of an appropriate scale bar

-cartographic principles of design

Mount St. Helens map

This map is meant to show the change that overcame Mount St. Helens when it erupted, in a way intuitive and informative for the general populace. The tools used in analysis were:

-hillshade

-transparency of the hillshade

-slope

-aspect

-viewshed

-contour

-interpolation of a multiple digitized lines at once and creation of a profile graph from those lines, including management of the output graphs

-the ‘minus’ tool for subtraction of the post-eruption raster from the pre-eruption raster

-symbolization of the ouput of the ‘minus’ analysis into three classes (elevation gained, elevation lost, or elevation unchanged)

-general cartographic principles (this is the earliest example of my attempt to follow newly-learned principles)

Final Map

This was my final project map, showing an analysis of ghost towns along the Oregon coast and a ranking of their creepiness. In its completion, I used:

-the Mosaic tool

-georeferencing and adjustment of an image

-KML-to-layer conversion

-‘join’, to join an .xls document to my attribute table and include more information

-the ‘extract by mask’ tool to clip my raster to a shapefile’s boundaries

-buffers

-the slope tool

-ArcMap to add a column of data into my attribute table

-editing tools to create a feature class

-feature-to-raster conversion tools

-reclassification

-the ‘weighted overlay’ tool

-the ‘raster-to-point’ tool

-ranked symbolization

Chloё Woolley’s Portfolio How-to’s

Tool/Skill What it does? And when to use it? Hints/Reminders *ALWAYS SAVE THINGS WHERE YOU CAN FIND THEM AGAIN, AND SAVE MULTIPLE COPIES AS YOU PROGRESS

Start a new map in ArcGIS It shows spatial data; use it when you need to understand spatial relationships and statistics

1. In ArcCatalog: Make a copy of the original data and put in a folder called “original.” 2. In ArcCatalog: Create a File geodatabase and add the data to it. Create a new file geodatabase for

each new project. 3. Open ArcMap. Select “New Maps”, then select “Blank Map.” DO NOT CLICK OK!!! 4. Designate the “Default geodatabase for this map” as the geodatabase just created. Click OK 5. In ArcMap, click “File” Map Document Properties, and select “Store relative pathnames to data

sources.” Check default geodatabase and change if needed. 6. Click OK. Add data to the map. Save frequently!

Convert KML to a feature class and feature class to KML

It converts data to and from the KML format into layer format; Use it when you find great data that’s formatted for Google Earth or when you need to see a layer in Google Earth

- KML files don’t show up in ArcCatalog - KML files are abundant on the Internet

*Search KML converter

Create a hillshade of a raster surface

It hypothetically illuminates a surface with shades of white to black; use it to create a more visually intuitive and aesthetic map

*Make sure your extensions are enabled Search ‘hillshade’; input appropriate raster information *If your map isn’t in a gdb, you might receive a big ‘X’ *You may need to adjust your z factor for discrepancy between the hillshade and the elevations ‘arc second’ measurements; look up appropriate z factor values by latitude and longitude

Prep a table for use in ArcGIS

Prepares non-spatial data to be joined to spatial data in ArcGIS; use when you have non-spatial data correlating with ArcGIS data that is not yet connected

-There can only be one header per column -Column headers must be less than 13 characters and have no ‘special’ characters except underscores (_) -Set data as ‘general’, ‘number’, or ‘text’ -Delete any totals -Save as a ‘.xls’ *Add it to your gdb *Make sure you know which column can be connected to the data already in your attribute table in ArcGIS *Make sure GPS data is in decimal degrees *Make sure text values (‘North’) are separate from numerical GPS values

Join Adds more information to spatial data in the map for more meaningful

*Right-click on the layer you want to join spatial data with and select ‘joins and relates; click ‘join’ and work through the Join Data wizard

symbolizations; use it when you need more meaningful symbolization and greater depth of information for your features

*Make sure the data that you’re joining is prepared for ArcGIS *You can’t edit the joined columns unless you add the joined tables/layers to ArcMap; if you edit it in ArcMap, those changes will be reflected in the rest of the data

Clip feature classes and rasters

Clip removes input features outside the parameters of the selected feature; use it when your features are of different sizes and shapes to allow for more concise representation

Search ‘clip’ *’Clip analysis’ is for polygons; ‘clip coverage’ focuses on the features to be removed instead of the features to be retained; ‘clip data management’ clips rasters

Dissolve or merge features

Dissolve aggregates features based on correlations; Merge combines multiple features that aren’t yet tied together but are of the same type (line, polygon, point); use when symbolically useful

The ‘Geoprocessing’ button (top toolbar) will give you Dissolve and Merge options.

Add an index map (extent indicators)

An index map gives a higher level of spatial reference and context; use when your audience is unfamiliar with the area or your main map doesn’t highlight the details you want to emphasize

Double-click the data frame; click the ‘extent indicators’ tab; select the data frame desired for reference *Click the ‘data frame’ in the data frame properties window; click ‘clip to shape’; select ‘outline of features’; do the same thing in the other data frame symbolized

Add a legend Explains non-intuitive symbolizations and what they represent; use it to explain symbolic representation

*Make sure you’re in ‘layout view’ Click the ‘Insert’ button (top toolbar); select ‘legend’

Use annotation Annotation is text that is not connected to specific features; it can be used to label an individual feature with information that isn’t in its attribute table or title an individual map

Click the ‘A’ button *Because annotation is not inherently linked to features, manipulating the features will not change your annotations; save annotating until the end so you don’t have to keep changing your annotation to fit your changing map

Create a feature class from ‘raw’ point data

Allows point data to be connected to a map; use to make point data into visual points

See above: ‘prepare table for use in ArcGIS’ and ‘Join’

(GPS) in an excel file Classify vector and raster data

Groups data for similar symbolization; use to increase or decrease the number of symbols for a dataset or redefine where those symbol breaks should lie against their represented attributes

Double-click the layer to be classified; click the ‘Symbology’ tab; click ‘quantities’ in the list on the left; indicate desired number of breaks in the dropdown menu; click ‘classify’ to manipulate the position of the breaks

When to use the geoprocessing tools (union, intersect, merge, buffer, dissolve)

Click the ‘Geoprocessing’ button on the top toolbar. Select the desired tool.

Select features using the selection tool

Selects specific features for further study; use when only one feature is of interest for a particular analysis

The ‘selection by features’ button is on the ‘tools’ toolbar; it looks like a white arrow over a green and white set of polygonal features *To clear selected features, there’s a button right next to the ‘selection by features’ button *To select multiple features, click the ‘selection’ button from the top toolbar, follow the dropdown menu to ‘interactive selection method’, and click ‘add to current selection’ *To clear specific features without clearing your whole selection, click the ‘selection’ button from the top toolbar, follow the dropdown menu to ‘interactive selection method’, and click ‘remove from current selection’

Select features in the attribute table

Selects all features with a specific attribute through the attribute table; use to select features with a specific attribute

Right click the layer in question and select ‘Open Attribute Table’ from the drop-down menu. When the Attribute table appears, click the ‘select by attributes’ button from the top toolbar (in the attribute table). *Put spaces between your mathematical parameters and attributes in the selection window

Select by attribute Allows you to view, change, and create layers based on, features with

*Turn off selectability for close layers Click the ‘selection’ button (top toolbar); click ‘select by attributes’

specific attributes *Put spaces between the parameters and mathematical symbols Select by location Allows you to view, change, and

create layers based on, features within a specific area or distance of a desired feature

*Turn off selectability for close layers Click the ‘selection’ button (top toolbar); click ‘select by location’ *Put spaces between the parameters and mathematical symbols

Assign Coordinate system to data that does not have a coordinate system

Tells ArcGIS greater spatial reference; use when trying to spatially connect data that doesn’t have a GCS to data that does

In ArcCatalog, search ‘project’. *Make very sure you’re not changing the coordinate system of any data that already has its own correct coordinate system

Reproject data from one coordinate system to another

Changes the coordinate system of a dataset from one projection to another; use when you’re absolutely sure that a dataset’s stated projection is incorrect to the data

In ArcCatalog, search ‘project’. Read the descriptions of the tools and select the appropriate one

Use surface raster tools: slope, contour, aspect, viewshed, curvature

Slope symbolizes the angle of the steepest downhill slope for every cell; use it to identify the steepest slopes on your map. Contour lines show topography linearly; use to simplify topographic presentation. Aspect symbolizes downslope direction of the greatest slope angle; use to identify flat areas and areas dipping in the same direction. Viewshed calculates visible cells from a specific observer location within a digital elevation model; use it to identify visible features from a specific location. Curvature symbolizes the curvature of a raster surface; use to symbolize the curvature of a raster surface

Search for the tool in ArcMap and apply to the desired surface *Make sure your contour lines are appropriately spaced

Create a topographic profile

Analyzes a line against the surface and projects it to represent elevation in side-view

Select the surface you want to profile; in the 3D Analyst toolbar, click the ‘interpolate line’ button (*looks like an s curve hovering over a surface); make the line against the surface (*double click to stop; do not click again unless you’re clicking a new button); click the ‘create profile graph’ button (*it’s in the drop-down menu under a point graph—it looks like a green topographic profile) *To change the layout of the graph, right-click the title bar and select ‘properties’

*To add the graph to the final presentation, right click the title bar and select ‘Add to Layout’

Visualizing a surface

Adequately represents information through comparison (subtraction) between rasters, comparison of elevation representations, etc.; use to make a surface more intuitively symbolic

*When subtracting one dem from another, search ‘minus’; do it in ArcCatalog; put the dem of larger volume in first; reclassify the symbolization to represent ‘0 change’ with no color; remember that negative numbers represent positive change in volume and positive numbers represent negative change in volume *Experiment with transparency of your hillshade, and keep it at the top of your table of contents *Try changing the azimuth and sun angle of your hillshade to emphasize different features *Try showing a surface in ArcScene, but make sure your custom surface is the dem

Create a customized toolbar

Allows you to use the tools you specifically need for a project more efficiently if they’re not already in their own toolbar

Click the ‘customize’ button on the top bar, and hover over ‘toolbars’; select ‘customize’ at the bottom of the dropdown menu. An empty toolbar will appear. Search for the tools you want in the search window; click and drag them to the empty toolbar *They will all appear as hammers; if you create the toolbar in ArcCatalog, you can change the icon by right-clicking on it

Mosaic Raster data Seamlessly stitches raster sets to each other

*Make a backup copy, especially of the Northernmost or Westernmost raster to be mosaicked: this raster will be replaced by the full mosaic Search ‘mosaic’ in ArcCatalog *The Northernmost or Westernmost of your raster datasets should be the first raster in the input window, as well as your ‘target raster

Reclassify Raster data A way to assign new values to individual cells or classes of cells in a raster dataset

Search ‘reclassify’; reclass by the desired field in the reclassify wizard *Can reclassify by individual values or groups/ranges of values

Use ArcScene (base height)

Shows a three-dimensional model of elevation data for more intuitive representation

*Have your hillshade already created In ArcScene, open the properties window of your hillshade, and in the ‘base height’ tab, instruct it to ‘float on a custom surface’; set that surface to the DEM (because that’s where the elevation data is stored’

Georeference raster data

Aligns uncoordinated data to a map coordinate system according to a number of available transformative

*Add a basemap before your un-georeferenced data: Use the drop-down menu of the ‘add data’ button. Don’t forget to determine the geographic coordinate system of your basemap.

options Under the ‘customize’ bar, hover over ‘toolbars’, and select the georeferencing toolbar. When adding links/control points, you can give specific coordinates to a point or connect the point to a feature on the basemap *When correlating control points between the georeferenced and ungeoreferenced data, make sure to click your ungeoreferenced data first *When inputting control point coordinates manually, y-values represent latitude and x-values represent longitude

Create a new feature class

Makes data agreeable with ArcGIS; use when you have data that needs to be analyzed in ArcGIS that isn’t already formatted for it

Right-click the gdb in ArcCatalog—select ‘new’—select ‘feature class’ *To import a coordinate system in the ‘new feature class’ wizard, click the little globe button on the top toolbar (the book gives outdated instructions on this).

Use editing tools to create features

Allows you to edit or create features within an already present feature class

On the editing toolbar, click the ‘editor’ dropdown menu and select ‘start editing’; select the ‘create features’ button on the editing toolbar; select the layer in the create features window and select construction tools below *’Snapping’ controls where your editing tools focus, or ‘snap’; find it in the editor dropdown menu

Create a feature data set

Allows you to create a feature class layer when the data you need cannot be found elsewhere in ArcGIS format

Right click the geodatabase in ArcCatalog; select ‘new’; select ‘feature class’ *To import a coordinate system in the ‘new feature class’ wizard, click the little button that looks like a globe’

Create a geologic map Gives you the opportunity to digitize and analyze local geology (on whatever scale you’re willing to work)

Follow the same steps as “Georeferencing Raster Data” to copy the original geologic map image in a raster format (a TIF File) to your map. Once georeferenced, use the steps in ‘create a new feature class’ to add two line feature classes, one for actual contacts that can be formed by faults and regular contacts. Line feature class to store contacts, call it ‘contacts.’ Add a short integer field named ‘linetype’. Give the field a default value of ‘0’, set the ‘Allow NULL values’ to ‘No.’ Then select finish. The linetype field is where you set the type of line (e.g. contact certain, contact inferred, etc.). Add a second for just faults that may stem away from contacts. Line feature class to store faults and fold axes, call it ‘faults’. Set it up a linetype short integer field like the one you made in the ‘contacts’ feature class. Create a 3rd feature class as a point feature class for strike and dips. Point feature class to store strike and dip data. Give it a name that is meaningful and that is less than 12 characters long (e.g. ‘strikedip’). Add a short integer field for ‘azimuth’ and a short integer field for ‘dip.’ Do not set the default value, set ‘Allow NULL values’ to ‘Yes.’ Assign the linetypes in the ‘contacts’ and ‘faults’ feature classes. Do the same for the ‘faults’ feature class.

Define Topology Rules by clicking the the feature dataset, select New – Topology and follow the topology instructions.

Add and correctly symbolize strike and dip data

Allows you to digitize strike and dip data in your map and symbolize it in an intuitive way

While editing, add points where your strike and dip data was taken, and in the attributes table assign the appropriate strike and dip data *This can be done with the attributes button on the editor toolbar To symbolize, add labels with the dip. Right click on the layer and under the symbology tab, use a strike and dip symbol (Geology 24K has a good one); select the ‘advanced’ button in Symbology and rotate according to azimuthal data

Add and correctly symbolize geologic contacts of all types

Allows you to digitize contacts between geologic units according to contact types (certain, covered, approximate, fault contact, etc.)

While editing (under editing toolbar, make sure you’ve already clicked ‘start editing’), click ‘create features’, the button at the end of the toolbar; in the create features window, select the layer (which you should have created) under which you want to save digitized geologic contacts; select lines *You’re going to need to create both the feature class under which to save the contacts and the domain types/line types within that feature class *Do not select polygons unless no lines are contained within other connected lines *Make sure all your snapping options are enabled *If a contact type changes, stop your line and continue from the end vertex with a new line type *Map topology defines appropriate feature connections and alerts you to inappropriately drawn features. Find it under editor, ‘more editing tools’, and ‘topology’.

Add and correctly symbolize faults

Allows you to digitize the location and type of fault (normal, reverse, certain, approximate, contact, etc.) for further analysis and study

While editing, click ‘create features’; in the create features window, select the already created fault layer with its different fault type domains *See above ‘add and correctly symbolize geologic contacts of all types’ for hints on linear feature drawing

Suitability Study Depicts a relative range of values compared against each other, ranked from most suitable to least suitable for a particular study (e.g. best sites for hunting wild turkey; most hazardous possible avalanche sites)

Define your goal and break down the factors involved in it (e.g. elevation, slope, land use type, size, proximity to specified features, cost, etc.); obtain the necessary data; perform the necessary analyses and combine reclassified outputs with weighted importance *Can use ‘map algebra’ or ‘weighted overlay’ tool to combine those outputs *Can also use a query *Also suggested to verify results of suitability study in the field, if possible, to identify overlooked necessary factors (is it downwind of a sewage treatment plant?)

Contour Point Data Represents a continuous value across the *If you start with a table of data, you must prepare it for suitable use in ArcGIS and

map as a line, with many lines representing many continuous values *Doesn’t necessarily have to be elevation!

convert it to a feature class Use Geostatistical Analyst toolbar to explore histograms, trend analyses, etc., of your data *Make sure you’re viewing the right data column (a trend analysis of latitude will be really boring) *’global’ means it focuses on the whole map where ‘local’ means it focuses on a specified part of the map

Add a graticule to a map

Represents latitude and longitude through parallels and meridians, to show location

Click ‘view’, ‘data frame properties; click the ‘grids’ tab; click the ‘new grid’ button; click the ‘graticule’ option in the ‘grids and graticules’ wizard

Data sources Specific sites to find different kinds of data, usable or format-able for ArcGIS

An excellent website that has links to data sources for many states and for the U.S.: http://libweb.uoregon.edu/map/map_section/map_Statedatasets.html ESRI on-line data: Click the add data button in ArcMap, select “Add data from ArcGIS Online” Search on what you are interested in. U.S. Data: - U.S. department of agriculture data (including georeferenced aerial photos): http://datagateway.nrcs.usda.gov/ - National geospatial program: http://www.usgs.gov/ngpo/ - U.S. data: seamless drgs (topographic maps), DEMs, landuse data and more: http://nationalmap.gov/viewer.html - U.S. Data and maps: http://geo.data.gov ; http://cumulus.cr.usgs.gov/ - Population data, government boundaries (counties, cities, etc.): http://www.esri.com/data/download/census2000-tigerline and www.Census.gov Water data: National Hydrography Dataset: http://nhd.usgs.gov/ U.S. water data: http://waterdata.usgs.gov/nwis LandSat (satellite images): http://glovis.usgs.gov/ http://www.spot.com www.digitalglobe.com

http://edc.usgs.gov/products/satellite/avhrr.html http://landsat.usgs.gov Aerial Photographs from the USDA http://gdw.apfo.usda.gov/mdoq/viewer/viewer.htm Aerial Photographs, Landsat, DEMs, DLGs, etc: http://edcsns17.cr.usgs.gov/EarthExplorer/ Global DEMs Based on ASTER data – higher resolution than SRTM: http://www.ersdac.or.jp/GDEM/E/index.html http://www.gdem.aster.ersdac.or.jp/ SRTM (Shuttle Radar Topography Mission, 3 arc second): http://edcsns17.cr.usgs.gov/srtmdted2 ETOPO5 (Earth topography, 5 minutes longitude, 5 minutes latitude): http://www.ngds.noaa.gov/mgg/global/etopo5.html GTOPO30 (earth topography, 30 arc-second, ~1 km) http://eds.usgs.gov/products/elevation/gtopo30/gtopo30.html GLOBE (earth topography, 30 arc-second) http://www.ngdc.noaa.gov/mgg/topo/globe.html World and U.S. Landcover data: http://landcover.usgs.gov/ Thematic data clearinghouse on biologic, geologic data http://geography.usgs.gov Satellite data: http://americaview.usgs.gov Climate data (U.S. and much of the rest of the world): http://www.ncdc.noaa.gov/oa/ncdc.html

Soil data: http://soils.usda.gov/ Various vector products: www.nga.mil National geophysical data center: http://www.ngdc.noaa.gov/ Volcanoes, climate, bathymetry, magnetism, earthquake epicenters, magnitude, depths: http://quake.geo.berkeley.edu Earthscope data: www.earthscope.org UNAVCO: interesting and varied data sets, global strain rate GPS Data: http://facility.unavco.org/data/data.html Plate boundary observations: http://pboweb.unavco.org/ MODIS: Beautiful satellite images http://modis.gsfc.nasa.gov/ http://modis.gsfc.nasa.gov/gallery/ USGS National Geologic Map Database: http://ngmdb.usgs.gov Universities often have data archives (e.g., U of U has lots of GPS data for Yellowstone) LiDAR data: http://opentopography.org/

Individual State Geospatial Data Centers (sites from students in GEO 340 F2008 - W2010) Alaska University of Alaska Fairbanks earthquake info center: www.aeic.alaska.edu California http://www.mapcruzin.com/ddownload_quake.htm Idaho http://www.insideidaho.org/asp/geodata.asp http://inside.uidaho.edu/asp/geodata.asp http://gisgate.co.clark.nv.us/gismo/freedata.htm http://www.esri.com/data/download/census2000_tigerline/index.html http://www.idwr.idaho.gov/gisdata/gis_data.htm http://nc.gisinventory.net/getting_started.html http://gis1.idl.idaho.gov/GIS_Links.htm http://gis1.idl.idaho.gov/GIS_Links.htm Data base (DEM): http://seamless.usgs.gov/ http://data.geocomm.com/catalog/ (requires membership) http://library.stanford.edu/depts/gis/gisdata_tables.html http://www.csc.noaa.gov/shoreline/data.htm l http://www.csc.noaa.gov/products/datasites/data_coast.html http://clearinghouse1.fgdc.gov/ General: http://fgdc.ftw.nrcs.usda.gov/servlet/FGDCWizard http://arcdata.esri.com/data/tiger2000/tiger_download.cfm

North Carolina http://www.lib.ncsu.edu/gis/counties.html http://www.nconemap.net/Default.aspx?tabid=286 Yellowstone http://bsi.montana.edu/gis http://bsi.montana.edu/research/data/gyegis Washington http://www3.wadnr.gov/dnrapp6/dataweb/dmmatrix.html Forest Service http://www.fs.fed.us/ Utah http://ugs.utah.gov/maps/gis/index.htm r http://utstnrogmsql3.state.ut.us/UtahRBDMSWeb/scan_data_lookup.cfm http://gis.utah.gov/ Land cover labels http://landcover.usgs.gov/classes.php Well Log http://www.oilgas.ogm.utah.gov/Data_Center/LiveData_Search/logs.htm Maine http://www.maine.gov/doc/nrimc/mgs/mgs.htm http://megis.maine.gov/catalog/ Missouri – http://msdis.missouri.edu/datasearch/themelist.jsp http://www.msdis.missouri.edu/

Montana http://nris.mt.gov/nsdi/drg.html http://libweb.uoregon.edu/map/map_section/map_Statedatasets.html http://www.mt.nrcs.usda.gov/technical/gis/geospatial.html New Jersey – http://www.state.nj.us/dep/njgs/geodata/dgs04-6.htm http://www.state.nj.us/dep/gis/ http://www.state.nj.us/dep/njgs/geodata/index.htm This site you can click on geology or geophysics or ever ground water and it will take you to a few places where you can download the information for what you are looking for. New Mexico http://tin.er.usgs.gov/geology/state/state.php?state=NM http://rgis.unm.edu New Jersey http://njgin.state.nj.us/ http://www.state.nj.us/dep/gis/listall.html Oregon http://www.oregon.gov/DAS/EISPD/GEO/sdlibrary.shtml http://gis.oregon.gov/ Texas http://www.glo.texas.gov/ www.tpwd.state.tx.us/landwater/land/maps/gis/data_downloads/ www.capcog.org/information-clearinghouse/geospatial-data/ www.tnris.state.tx.us/datadownload.jsp Washington http://apps.ecy.wa.gov/shorephotos/index.html http://fortress.wa.gov/dnr/app1/dataweb/dmmatrix.html www.ofm.wa.gov/geographic/07tiger.asp

www.ecy.wa.gov/services/gis http://www.ecy.wa.gov/services/gis/data/impervious/basins.htm http://www.ofm.wa.gov/geographic/default.asp http://www.ofm.wa.gov/geographic/07tiger.asp http://www.kitsapgov.com/dcd/gis/links/main.htm http://apps.ecy.wa.gov/shorephotos/index.html Wyoming – http://wgiac2.state.wy.us/scripts/DRGMAP/DRGmap.aspx?Area_Type=24K http://partners.wygisc.uwyo.edu/website/dataserver/viewer.htm http://wgiac2.state.wy.us/html/wsdc_index.asp