Location
Grassy Lake and Grassy Lake Dam (GRS)
Grassy Lake Dam is a zoned earthfill storage dam on Grassy Creek in Wyoming near the southern boundary of Yellowstone National Park. The reservoir's storage capacity supplements the storage at Island Park Reservoir. Grassy Lake Dam was constructed from 1937 to 1939. Columbia Basin Teletype (CBTT) = GRS.
Location Parent
State(s)
Wyoming
Unified Region(s)
Upper Colorado Basin
Reclamation Region(s) (Legacy)
Pacific Northwest
Timezone
MT
Elevation
7,201 ft
Vertical Datum
NAVD88
Coordinates (lat, long)
(44.12965909, -110.8193888)
Horizontal Datum
WGS84
