Lakes / Virginia / Dickenson County / John W. Flannagan Reservoir
John W. Flannagan Reservoir, Virginia
1,177.46 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Virginia
37.21 degrees N, 82.38 degrees W - Dickenson County. State and county outlines drawn from Census boundary data; the lake marker is placed by its USGS National Hydrography Dataset coordinates, not by eye. Schematic - not a survey map.
How John W. Flannagan Reservoir Stacks Up
- Larger than 96% of the 329 lakes counted in Virginia.
- About 134 miles from Roanoke, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| North Fork of Pound Lake | Wise | 16 mi | 116.63 acres |
| Lake Wise | Wise | 19 mi | 46.12 acres |
| Lake Bonaventure | Russell | 21 mi | 75.37 acres |
| Bark Camp Lake | Scott | 25 mi | 41.02 acres |
| Big Cherry Reservoir | Scott | 29 mi | 104.22 acres |
| Hidden Valley Lake | Washington | 30 mi | 61.04 acres |
Straight-line distance between lake centers.
Facts and Figures
Largest Lakes in Virginia
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | John H. Kerr Reservoir | Mecklenburg | 44,895.08 acres | - |
| 2 | Smith Mountain Lake | Franklin | 19,676.26 acres | - |
| 3 | Lake Anna | Louisa | 12,672.74 acres | - |
| 4 | Claytor Lake | Pulaski | 4,073.29 acres | - |
| 5 | Lake Drummond | Chesapeake | 3,240.79 acres | - |
All 329 Virginia lakes ranked by surface area
Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 120023395). Verified October 30, 2026.