Lakes / Oregon / Lane County / Triangle Lake
Triangle Lake, Oregon
305 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Oregon
44.17 degrees N, 123.57 degrees W - Lane 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 78% of the 642 lakes counted in Oregon.
- About 26 miles from Eugene, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Little Lake | Lane | 0.7 mi | 26 acres |
| Hult Log Storage Reservoir | Lane | 6.3 mi | 41 acres |
| Fern Ridge Lake | Lane | 15 mi | 6,581 acres |
| Winkle Lake | Benton | 23 mi | 27 acres |
| McBee Lake | Benton | 25 mi | 28 acres |
| Mercer Lake | Lane | 26 mi | 350 acres |
Straight-line distance between lake centers.
Facts and Figures
Waterbody ID{19513829-87B0-45E2-A01D-84FFC86FFF71}
CountyLane
Lake TypeLake
Coordinates44.1726, -123.5731
Questions About Triangle Lake
How Big Is Triangle Lake?
Triangle Lake covers 305 acres in Lane County, Oregon.
What Is the Largest Lake in Lane County?
Fern Ridge Lake is the largest lake in Lane County, at 6,581 acres.
Largest Lakes in Oregon
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Upper Klamath Lake | Klamath | 62,095 acres | - |
| 2 | Lake Umatilla | Morrow | 50,042 acres | - |
| 3 | Lake Abert | Lake | 37,137 acres | - |
| 4 | Summer Lake | Lake | 31,602 acres | - |
| 5 | Harney Lake | Harney | 31,290 acres | - |
All 642 Oregon 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 {19513829-87B0-45E2-A01D-84FFC86FFF71}). Verified October 30, 2026.