Lakes / Idaho / Custer County / Hell Roaring Lake
Hell Roaring Lake, Idaho
56.59 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Idaho
44.02 degrees N, 114.94 degrees W - Custer 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 Hell Roaring Lake Stacks Up
- Larger than 40% of the 316 lakes counted in Idaho.
- About 37 miles from Ketchum, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Imogene Lake | Custer | 2.2 mi | 71.66 acres |
| Upper Cramer Lake | Custer | 2.6 mi | 30.39 acres |
| Farley Lake | Custer | 3.1 mi | 32.15 acres |
| Yellow Belly Lake | Custer | 3.4 mi | 193.48 acres |
| Pettit Lake | Blaine | 4.2 mi | 398.35 acres |
| Edna Lake | Custer | 4.7 mi | 56.2 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Hell Roaring Lake
How Big Is Hell Roaring Lake?
Hell Roaring Lake covers 56.59 acres in Custer County, Idaho.
What Is the Largest Lake in Custer County?
Redfish Lake is the largest lake in Custer County, at 1,503.88 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 39264763). Verified October 30, 2026.