Lakes / Utah / Box Elder County / Mantua Reservoir
Mantua Reservoir, Utah
514.72 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Utah
41.50 degrees N, 111.93 degrees W - Box Elder 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 Mantua Reservoir Stacks Up
- Larger than 84% of the 298 lakes counted in Utah.
- About 20 miles from Ogden, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Cement Ponds | Box Elder | 7.6 mi | 51.15 acres |
| Horseshoe Sloughs | Box Elder | 8.5 mi | 117.87 acres |
| Hyrum Reservoir | Cache | 8.8 mi | 431.94 acres |
| Porcupine Reservoir | Cache | 10 mi | 179.15 acres |
| Klondike Lake | Box Elder | 12 mi | 129.48 acres |
| South East Bay | Box Elder | 12 mi | 598.98 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Mantua Reservoir
How Big Is Mantua Reservoir?
Mantua Reservoir covers 514.72 acres in Box Elder County, Utah.
What Is the Largest Lake in Box Elder County?
Great Salt Lake is the largest lake in Box Elder County, at 925,981.5 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 120030650). Verified October 30, 2026.