Lakes / Idaho / Owyhee County / Lower Nichol Flat Reservoir
Lower Nichol Flat Reservoir, Idaho
82.62 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Idaho
42.33 degrees N, 116.24 degrees W - Owyhee 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 Lower Nichol Flat Reservoir Stacks Up
- Larger than 52% of the 316 lakes counted in Idaho.
- About 89 miles from Boise, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Big Blue Creek Reservoir | Owyhee | 2.8 mi | 185.58 acres |
| Bybee Reservoir | Owyhee | 5.2 mi | 407.61 acres |
| Little Blue Creek Reservoir | Owyhee | 6.7 mi | 133.44 acres |
| Henry Lake | Owyhee | 8.0 mi | 171.74 acres |
| Payne Creek Reservoir | Owyhee | 9.3 mi | 71.91 acres |
| Juniper Lake | Owyhee | 9.3 mi | 389.26 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Lower Nichol Flat Reservoir
How Big Is Lower Nichol Flat Reservoir?
Lower Nichol Flat Reservoir covers 82.62 acres in Owyhee County, Idaho.
What Is the Largest Lake in Owyhee County?
C J Strike Reservoir is the largest lake in Owyhee County, at 6,207.99 acres.
Largest Lakes in Idaho
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake Pend Oreille | Bonner | 92,764.44 acres | - |
| 2 | American Falls Reservoir | Power | 55,319.78 acres | - |
| 3 | Coeur d'Alene Lake | Kootenai | 26,891.64 acres | - |
| 4 | Lake Cascade | Valley | 25,043.4 acres | - |
| 5 | Priest Lake | Bonner | 23,425.59 acres | - |
All 316 Idaho lakes ranked by surface area
Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 131930865). Verified October 30, 2026.