Lakes / Wyoming / Park County / Markham Reservoir
Markham Reservoir, Wyoming
14 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Wyoming
44.51 degrees N, 109.06 degrees W - Park County. State and county outlines drawn from Census boundary data; the lake marker is placed by its Wyoming Game and Fish Department coordinates, not by eye. Schematic - not a survey map.
How Markham Reservoir Stacks Up
- Larger than 12% of the 783 lakes counted in Wyoming.
- About 1 miles from Cody, as the crow flies.
- 2 fish species on the WGFD list for this lake.
Fish Species
Species recorded for this lake. Presence only - no abundance ratings.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Cody Municipal Reservoir | Park | 0.5 mi | 33.11 acres |
| Beck Lake | Park | 0.5 mi | 108 acres |
| Alkali Lake | Park | 1.4 mi | 103.54 acres |
| Newton Lakes | Park | 3.8 mi | 51 acres |
| Buffalo Bill Reservoir | Park | 8.7 mi | 6,691 acres |
| Wiley Lake | Park | 9.7 mi | 206.7 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Markham Reservoir
How Big Is Markham Reservoir?
Markham Reservoir covers 14 acres in Park County, Wyoming.
What Fish Are in Markham Reservoir?
The WGFD lists Brown Trout and Snake River Cutthroat for Markham Reservoir.
What Is the Largest Lake in Park County?
Buffalo Bill Reservoir is the largest lake in Park County, at 6,691 acres.
Deepest Natural Lakes in Wyoming
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Deep Lake | Park | 285 acres | 472 ft |
| 2 | Lake Reno | Park | 107 acres | 222 ft |
| 3 | Snowdrift Lake | Teton | 57 acres | 174 ft |
| 4 | Crater Lake | Big Horn | 39 acres | 166 ft |
| 5 | Beauty Lake | Park | 94 acres | 165 ft |
All 120 Wyoming lakes ranked by depth
Largest Lakes in Wyoming
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Yellowstone Lake | Teton | 84,442 acres | - |
| 2 | Flaming Gorge Reservoir | Sweetwater | 38,888.36 acres | 440 ft |
| 3 | Jackson Lake | Teton | 26,853.22 acres | - |
| 4 | Pathfinder Reservoir | Carbon | 22,000 acres | 192 ft |
| 5 | Seminoe Reservoir | Carbon | 20,000 acres | 200 ft |
All 783 Wyoming lakes ranked by surface area
Sources: Wyoming Game & Fish lake data (ID 65456013). Verified October 30, 2026.