Lakes / Utah / Salt Lake County / Mountain Dell Reservoir
Mountain Dell Reservoir, Utah
81.05 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Utah
40.76 degrees N, 111.72 degrees W - Salt Lake 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 Mountain Dell Reservoir Stacks Up
- Larger than 49% of the 298 lakes counted in Utah.
- About 9 miles from Salt Lake City, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Little Dell Reservoir | Salt Lake | 1.7 mi | 208.13 acres |
| East Canyon Reservoir | Morgan | 12 mi | 659.28 acres |
| Twin Lakes Reservoir | Salt Lake | 13 mi | 29.16 acres |
| Decker Lake | Salt Lake | 13 mi | 33.85 acres |
| Rockport Lake | Summit | 17 mi | 1,056.15 acres |
| Baileys Lake | Salt Lake | 17 mi | 80.41 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Mountain Dell Reservoir
How Big Is Mountain Dell Reservoir?
Mountain Dell Reservoir covers 81.05 acres in Salt Lake County, Utah.
What Is the Largest Lake in Salt Lake County?
Kennecott Tailings Pond Number One is the largest lake in Salt Lake County, at 5,053.29 acres.
Largest Lakes in Utah
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Great Salt Lake | Box Elder | 925,981.5 acres | - |
| 2 | Lake Powell | Kane | 128,544.01 acres | - |
| 3 | Sevier Lake | Millard | 122,527.82 acres | - |
| 4 | Utah Lake | Utah | 91,155.46 acres | - |
| 5 | Bear Lake | Rich | 70,008.54 acres | - |
All 298 Utah lakes ranked by surface area
Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 47437424). Verified October 30, 2026.