LITTLE

Stinkin

g

Cree

k

Limpia Creek

Black

River

Delaware River

32o

94o

96o

32o

30o

94o

96o

Punta

De

Agua

Creek

CANADIAN

RIVER

Palo

Duro

Creek

McClellan Creek

NORTH

RE

D

RED RIVER

FORK

SALT

Sweetwater Creek

PR

AIR

IE

DOG TOWN

FORK

RED RIVER Cree

k

Running

Water

Draw

Black

Draw

Water

Yellow House Creek

PEASE RIVER

MIDDLE

RIVER

WHITE

RIVER

NORTH

MOUNTAIN

DO

UBLE

FORK

FORK BRAZOS

MOUNTAIN DOUBLE

FORK

RIVER

BRAZOS

FORK

SALT

NORTH

WICHITA RIVER

WICHITA RIVER

RIVER

BRAZOS RIVER

Millers

Creek

RIVER

RIVER

WEST FORK TRINITYRIVER

RIVER

Pecan

Bayou

NORTH SULPHUR RIVER

RIVER

SULPHUR

SOUTH

White Oak Creek

RIVER

SULPHUR

Big

Cypress Creek

Black

Cypress Creek

Creek

Cypress

Little

ELM FORK TR

INITY

RIV

ER

Big Sandy

Creek

Creek

Creek

Clear

Creek

Denton Range

EA

STFO

RKT

RIN

ITYR

.

RED

COLORADO

RIVER

Beals Creek

Elm

C

reek

Pecan

Bayou

Cre

ek

Cre

ek

Elm

Ced

ar

Califo

rnia Creek

CLEAR FORK BRAZOS R

IVE

R

MIDDLE CONCHO

NORTH CONCHO

RIVER

RIVER CONCHO

RIVER

Spring Cree

k Creek

Dov

e

SOU

THC

ON

CH

O

RIV

ER

COLORADO

RIVER

RIVER

SABA

Brady

Creek

LLANO

RIVER

CLEARFORK

TRINITY

R. BRAZOS

RIVER

NORTH BOSQUE

RIV

ER

LEON

RIVER

RIVER

LAMPASAS

Creek

Cowhouse

TRINITY

RIVER

R ichland Cr.

SABINE

RIV

ER

RIVER

AN

GE

LINA

NECHES

RIVER

SAB

INE

RI

VER

SABINE

RIVER

PECOS

RIVER

RIO

GRANDE

RIVER

RIVER

RIVER

RIVE

R

DEVILS

LLANO

LLANO

NORTH

SOU

TH

SAN GABRIEL

LITTLE RIVER

RIVER

BR

AZO

S

NAVASOTA

RIV

ER

Davidson

Creek

YeCr gua

eek

Middle Yegua

Yegua

East

Cr.

Creek

Bedias

TRINITY

RIVER

Beaver

Creek

RIV

ER

RIV

ER

RIVER

RIVER

NUECES

NUECES

WEST

FR

IO

MEDINA Hondo

SAB

INA

L

Creek

Creek

Seco

LEO

NA

PEDERNALES RIVER

RIVER

GUADALUPE

RIVER

Cibolo

Creek

RIVER

Plum

Creek

Creek

RIVER

SAN

MARCOS

Sandies

COLORADO

RIVER

RIVER

RIVERRIVER

LAVACA N

AVID

AD

SAN

BERNARD

East M

ustang

Creek

TRES PALAC

IOS

RIV

ER

WEST

FOR

K

SAN Caney

Creek

EAST FORKSAN

JACIN

TO

Spring Creek

Willow

Creek

Taylor Bayou

Chocolate

Bayou

Creek Clear

Cedar Bayou

Goose C

r.

RIVER

Garcitas Creek

SAN

AN

TON

IO

RIV

ER

Coleto

Creek

Placedo

Creek

PerdidoCreek

Aransas

Creek

Copano

Cr.

MISSION RIVER

ATASCO

SA

RIVER

RIVER

RIVER

Oso

Creek

Los Olmos

Creek

NUECES

FRIO

San

Miguel Creek

GRAND

E

RIO

GULF OF M

EXICO

GU

LF O

F M

EXIC

O

PEASE

RIVER

BEAVER

RIVER

DeepRed Run

Mud

Creek

BLU

E

RIVER

Downstream Beaver River not shown

Amarillo

Wichita Falls

Texarkana

Lubbock

Fort Dallas Worth

Tyler

Abilene

El Big SpringMidland Paso

Odessa

San Angelo

Fort Stockton

Austin

San Marcos

New Braunfels

San Antonio

102o

100o

106o

104o

106o

30o

102o

104o

CIMARRON

FORK

RIVER

Region 1

Region 3

Region 7 Region 10

Region 4

Region 2

Region 8

Region 11

Region 9

Region 5

EXPLANATION

Streamflow-gaging stations also used for region 8 analysis

Streamflow-gaging stations also used for region 6 analysis Region 6

Hydrologic-region boundary—Modified from Asquith and Slade, 1995

Location of streamflow-gaging station—Number corresponds to map number in table 1

Note: Regions 1 and 2 combined for this study

1

3

4

2

12

5

11

6 7 8

9

218

92

94

13

18

96

19

1716

10

14

20 97

24

25

41

40 28

43

42

29

30

26

27

32

31 33

34

35

37

39

36

38

109

110 60

111

21

22

23

64

63

61

65

62

15

90

138

98

102

91

100

101

105 106

104

103 107

108

99

93 95

51

44

45 46

66

219

53

112

113 118

4768

114 67 140146

54 55

56 69

133116

115

139

147

142

216

220 221

223

217

222

224

225

52 119

120

121 122 148 149

154152

153

143 144

141

145

226

227

228

201 200

150

151

176

175174

205

204 206

208 207

187 188

189

190 192

191

177

156

155

157

179

178

180

160

161 162

159

158

124

126 125123 127

128

181 182

183

193

132131

130

163

165 167

168 169

166 170

171

164

137

135 136

134

89

87

88

80 81 83

82 7978

77 85 86

84

76

7475

73

72

71

70129

117 57

58

59

209

211 210

213

212

203

198

196

197 195

194

186

184 185

173

172

BARKER RESERVOIR

LAKE CHARLOTTE

LAKE TEXANA

COLETO CREEK RESERVOIR

CHOKE CANYON RESERVOIR

LAKE CORPUS CHRISTI

48

49

50

202 199

214

215

OKLAHOMA

NEW MEXICO

MEXICO

36o

36o

98o

34o34o

Tule

LAKE MEREDITH

GREENBELT LAKE

LAKE TEXOMA

LAKE KEMP PAT MAYSEMOSS

TRUSCOTT LAKELAKEBRINE LAKE

LAKE LAKE RAYKICKAPOO ARROWHEAD ROBERTS WRIGHT Salt Croton LAKE PATMAN

COOPER LAKECreeek LAKE

LAKE BOBLEWISVILLEBRIDGEPORT SANDLINLAKE

WICHITA

WICHITA

Mineral Creek

SOUTH

LAKE RESERVOIR

GRAHAM GRAPEVINE

LAVON LAKE

LAKE FORK

UpstreamPecos River not shown ALAN HENRY

EAGLE LAKE RESERVOIRPOSSUM MOUNTAINKINGDOM Bear

CreekLAKERESERVOIR LAKE

LAKE O'LAKE THE PINESLAKE RAYWORTH LAKEHUBBARD TAWAKONI

Prairie Creek Deadman Fish

Creek Creek

Cat Claw Creek

SABANA

Waco

Temple

Bryan

Georgetown

Beaumont

Houston

Del Rio Galveston

Victoria

Corpus Christi

Laredo

Kingsville

Little Pond Creek

SAN

S. ForkRIVER Rocky Creek

North Elm Creek

RIVER

HUBBARD CREEK RESERVOIR

LAKE J.B. TH

LAKE

OMAS

CO CITY LORADO

Pecan Creek

SQUAW CREEK RESERVOIR

LAKE ARLINGTON

BENBROOK LAKE

LAKE GRANBURY

JOE POOL LAKE

BARDWELL LAKE

CEDAR CREEK

RESERVOIR

MARTIN LAKE

RED BLUFF RESERVOIR

E.V. SPENCE RESERVOIR

HORDS CREEK LAKE

PROCTOR LAKE

LAKE WHITNEY

AQUILLA LAKE

RICHLAND-CHAMBERS RESERVOIR

NAVARRO MILL LAKE

LAKE NACOGDOCHES

O.C. FISHER LAKE

TWIN BUTTES RESERVOIR

LAKE NASWORTHY

O.H. IVIE RESERVOIR

STILLHOUSE HOLLOW LAKE

WACO LAKE

BELTON LAKE

LAKE LIMESTONE

SAM RAYBURN RESERVOIR

LAKE BUCHANAN

GRANGER LAKELAKE GEORGETOWN

LIVINGSTON RESERVOIR

B.A. STEINHAGEN LAKE

LAKE CONROE

LAKE TRAVIS SOMERVILLE

LAKE

Little Cypress

Creek

LAKE HOUSTON

ADDICKS RESERVOIR

CANYON LAKE

INTERNATAMISTAD RESERV

IONAL

OIR

MEDINA LAKE

PARKERS CREEK RESERVOIR

CALAVERAS LAKE

BRAUNIG LAKE

Cr.

BLANCO

Redgate Creek

28o

100o

0 20 40 60 80 MILES

INTERNATIONAL FALCON

RESERVOIR

McAllen Harlingen

98o 26o

26o

Brownsville

218

U.S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY

IN COOPERATION WITH THE

TEXAS NATURAL RESOURCE CONSERVATION COMMISSION WATER-RESOURCES INVESTIGATIONS REPORT 00–4064

Location of selected stations—PLATE 1 Lanning-Rush, Jennifer, 2000, Regional equations for

estimating mean annual and mean seasonal runoff for natural basins in Texas, base period 1961–90

Digital base from U.S. Geological Survey Scale 1:2,000,000 Albers equal-area projection based on Standard parallels 45.5 and 29.5 degrees

MAP SHOWING LOCATION OF SELECTED STREAMFLOW-GAGING STATIONS WITH NATURAL BASINS IN OR NEAR TEXAS

By Jennifer Lanning-Rush

2000