Lakes / California / Lassen County / Heath Dam Reservoir
Heath Dam Reservoir, California
363 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - California
40.84 degrees N, 120.79 degrees W - Lassen 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 Heath Dam Reservoir Stacks Up
- Larger than 78% of the 1,147 lakes counted in California.
- About 161 miles from Sacramento, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Swanberger Reservoir | Lassen | 1.5 mi | 68 acres |
| Little Cleghorn Reservoir | Lassen | 3.9 mi | 73 acres |
| Cleghorn Reservoir | Lassen | 4.7 mi | 151 acres |
| Said Valley Reservoir | Lassen | 5.6 mi | 205 acres |
| Summit Lake | Lassen | 5.9 mi | 74 acres |
| Van Sickle Lake | Lassen | 6.7 mi | 40 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Heath Dam Reservoir
How Big Is Heath Dam Reservoir?
Heath Dam Reservoir covers 363 acres in Lassen County, California.
What Is the Largest Lake in Lassen County?
Honey Lake is the largest lake in Lassen County, at 59,917 acres.
Largest Lakes in California
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Salton Sea | Imperial | 233,096 acres | - |
| 2 | Lake Tahoe | Placer | 122,975 acres | - |
| 3 | Goose Lake | Modoc | 93,048 acres | - |
| 4 | Honey Lake | Lassen | 59,917 acres | - |
| 5 | Mono Lake | Mono | 45,124 acres | - |
All 1,147 California lakes ranked by surface area
Sources: USGS NHD (The National Map NHD MapServer layer 12) named waterbodies FTYPE 390/436; counties via Census point-in-polygon lake data (ID 83815941). Verified October 30, 2026.