# List of largest reservoirs in Wyoming

The following is a list of the fourteen reservoirs, in the United States state of Wyoming, that contain at least 40,000 acre-feet (49 million cubic meters) when at full capacity. In addition to in-stream reservoirs, the list includes enhanced natural lakes, notably Jackson Lake. With five of the fourteen largest reservoirs in the state, the North Platte River is the most dammed river in the state, and provides much of the state's water storage.
These reservoirs provide 10,221,672 acre-feet (13 billion cubic metres) of storage. (Some of this storage capacity, or of the water held in it, is allocated otherwise than for normal use within the state.)
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* GPX (all coordinates)
* GPX (primary coordinates)
* GPX (secondary coordinates)
* Key
* † denotes reservoir not entirely in Wyoming

## List

| Name | County(s) | Coordinates | Volume (acre feet) | Volume (km$^3$) | Elevation | Inflow | Dam |
| Flaming Gorge Reservoir | Sweetwater (WY)†, Daggett (UT)† | 41°05′08″N 109°33′01″W﻿ / ﻿41.08556°N 109.55028°W﻿ / 41.08556; -109.55028 | 3,778,700 | 4.6610 | 6,040 | Green River | Flaming Gorge Dam |
| Pathfinder Reservoir | Carbon, Natrona | 42°27′09″N 106°53′39″W﻿ / ﻿42.45250°N 106.89417°W﻿ / 42.45250; -106.89417 | 1,070,000 | 1.3198 | 5,852 | North Platte River | Pathfinder Dam |
| Seminoe Reservoir | Carbon, Albany | 42°08′18″N 106°52′59″W﻿ / ﻿42.13833°N 106.88306°W﻿ / 42.13833; -106.88306 | 1,017,276 | 1.2548 | 6,357 | North Platte River | Seminoe Dam |
| Boysen Reservoir | Fremont | 43°22′38″N 108°10′32″W﻿ / ﻿43.37722°N 108.17556°W﻿ / 43.37722; -108.17556 | 892,226 | 1.1006 | 4,732 | Wind River | Boysen Dam |
| Jackson Lake | Teton | 43°50′20″N 110°39′11″W﻿ / ﻿43.83889°N 110.65306°W﻿ / 43.83889; -110.65306 | 847,000 | 1.0448 | 6,770 | Snake River | Jackson Lake Dam |
| Glendo Reservoir | Platte, Converse | 42°30′40″N 104°57′25″W﻿ / ﻿42.51111°N 104.95694°W﻿ / 42.51111; -104.95694 | 763,039 | 0.9412 | 4,653 | North Platte River | Glendo Dam |
| Buffalo Bill Reservoir | Park | 44°29′35″N 109°12′09″W﻿ / ﻿44.49306°N 109.20250°W﻿ / 44.49306; -109.20250 | 646,565 | 0.7975 | 5,394 | Shoshone River | Buffalo Bill Dam |
| Fontenelle Reservoir | Lincoln, Sweetwater | 42°03′10″N 110°05′19″W﻿ / ﻿42.05278°N 110.08861°W﻿ / 42.05278; -110.08861 | 345,360 | 0.4260 | 6,509 | Green River | Fontenelle Dam |
| Keyhole Reservoir | Crook | 44°22′32″N 104°47′04″W﻿ / ﻿44.37556°N 104.78444°W﻿ / 44.37556; -104.78444 | 334,200 | 0.4122 | 4,114 | Belle Fourche River | Keyhole Dam |
| Alcova Reservoir | Natrona | 42°32′14″N 106°44′08″W﻿ / ﻿42.53722°N 106.73556°W﻿ / 42.53722; -106.73556 | 184,405 | 0.2275 | 5,500 | North Platte River | Alcova Dam |
| Bull Lake Reservoir | Fremont | 43°12′18″N 109°03′36″W﻿ / ﻿43.20500°N 109.06000°W﻿ / 43.20500; -109.06000 | 152,459 | 0.1881 | 5,805 | Bull Lake Creek | Bull Lake Dam |
| Wheatland Reservoir Number 2 | Albany | 41°52′55″N 105°35′08″W﻿ / ﻿41.88194°N 105.58556°W﻿ / 41.88194; -105.58556 | 98,930 | 0.1220 | 6,968 | Laramie River | |
| New Fork Lake | Sublette | 43°05′26″N 109°57′30″W﻿ / ﻿43.09056°N 109.95833°W﻿ / 43.09056; -109.95833 | 45,900 | 0.0566 | 7,825 | New Fork River | New Fork Lake Dam |
| Guernsey Reservoir | Platte | 42°19′09″N 104°47′55″W﻿ / ﻿42.31917°N 104.79861°W﻿ / 42.31917; -104.79861 | 45,612 | 0.0563 | 4,420 | North Platte River | Guernsey Dam |