National Park ServiceU.S. Department of the Interior

Yellowstone National ParkWyoming - Montana - Idaho Cellular Coverage Areas

Produced 7/11/2017 by the Yellowstone Spatial Analysis Center 307-344-2246Path: S:\Data_and_Map_Requests_2017\jeff_mitzelfelt\2017_07_DeYoungCellMap\ArcGIS_Projects\cellCoverageWithText.mxd

This map indicates the approximate areas of coverage and the carriers who currently hold permits to operate cell sites within the boundaries of Yellowstone National Park. Colored shapes specify six general areas of cellular coverage where blue represents typically strong signal penetration, green depicts good signal, and yellow represents the weakest signal within the covered areas.

During periods of high visitation the cellular network can be very slow or completely unavailable. If you are unable to connect, try moving to another coverage area or wait until off-peak hours. Roaming agreements are constantly changing, so while carriers not listed on the map may be capable of transmitting and receiving voice and/or data, there is no guarantee that you will have service. The FCC's basic 911 rules require wireless service providers to transmit all 911 calls to a Public Safety Answering Point (PSAP), regardless of whether the caller subscribes to the provider's service or not. Coverage areas are intentionally limited to preserve wilderness character and in accordance with Yellowstone's Wireless Plan.