Lakes / Texas / Donley County / Greenbelt Reservoir
Greenbelt Reservoir, Texas
1,990 acres
Surface Area
84 ft
Max Depth
30 ft
Average Depth
Where It Sits, and How Deep It Goes
Locator - Texas
35.01 degrees N, 100.91 degrees W - Donley County. State and county outlines drawn from Census boundary data; the lake marker is placed by its Texas Parks and Wildlife Department coordinates, not by eye. Schematic - not a survey map.
Depth Profile - Greenbelt Reservoir
Schematic cross-section drawn to one shared depth scale - not a survey or bathymetric map.
How Greenbelt Reservoir Stacks Up
- Ranks #10 for depth among the 107 natural lakes counted in Texas so far.
- Larger than 93% of the 1,641 lakes counted in Texas.
- The largest lake in Donley County among those counted.
- Its average depth of 30 ft is more than 3 times a typical shallow Texas lake, which averages under 10 ft.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Clarendon Lake | Donley | 4.8 mi | 83.14 acres |
| Wakefield Lake | Gray | 19 mi | 191.75 acres |
| Finger Lake | Hall | 24 mi | 38.05 acres |
| Horn Reservoir | Carson | 24 mi | 31.63 acres |
| Hancock Lake | Hall | 25 mi | 44.48 acres |
| Club Lake | Collingsworth | 27 mi | 50.16 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Greenbelt Reservoir
How Big Is Greenbelt Reservoir?
Greenbelt Reservoir covers 1,990 acres in Donley County, Texas.
How Deep Is Greenbelt Reservoir?
Greenbelt Reservoir reaches 84 ft at its deepest. Its average depth is 30 ft.
Deepest Natural Lakes in Texas
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Amistad Reservoir | Val Verde | 64,900 acres | 217 ft |
| 2 | Comanche Creek Reservoir | Pecos | 3,272 acres | 125 ft |
| 3 | Belton Lake | Bell | 12,385 acres | 124 ft |
| 4 | O. H. Ivie Reservoir | Concho | 19,149 acres | 119 ft |
| 5 | Stillhouse Hollow Lake | Bell | 6,429 acres | 107 ft |
All 107 Texas lakes ranked by depth
Largest Lakes in Texas
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Toledo Bend Reservoir | Sabine | 181,600 acres | 110 ft |
| 2 | Sam Rayburn Reservoir | San Augustine | 114,500 acres | 80 ft |
| 3 | Lake Livingston | San Jacinto | 90,000 acres | 77 ft |
| 4 | Falcon Reservoir | Zapata | 80,555.4 acres | - |
| 5 | Amistad Reservoir | Val Verde | 64,900 acres | 217 ft |
All 1,641 Texas lakes ranked by surface area
Sources: Texas Parks & Wildlife lake data (ID 91903819). Verified October 30, 2026.