Lakes / California / Lassen County / Triangle Lake
Triangle Lake, California
50 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - California
40.53 degrees N, 121.22 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 Triangle Lake Stacks Up
- Larger than 33% of the 1,147 lakes counted in California.
- About 135 miles from Sacramento, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Turnaround Lake | Lassen | 1.1 mi | 33 acres |
| Widow Lake | Lassen | 2.4 mi | 29 acres |
| Caribou Lake | Lassen | 3.1 mi | 73 acres |
| Silver Lake | Lassen | 3.7 mi | 98 acres |
| Butte Lake | Lassen | 4.4 mi | 208 acres |
| Long Lake | Lassen | 4.4 mi | 44 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Triangle Lake
How Big Is Triangle Lake?
Triangle Lake covers 50 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 55092823). Verified October 30, 2026.