Lakes / Arizona / Apache County / Tunnel Reservoir
Tunnel Reservoir, Arizona
39 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Arizona
34.03 degrees N, 109.44 degrees W - Apache 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 Tunnel Reservoir Stacks Up
- Larger than 22% of the 198 lakes counted in Arizona.
- About 145 miles from Sedona, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Greer Lakes | Apache | 0.4 mi | 137 acres |
| Bunch Reservoir | Apache | 0.6 mi | 81 acres |
| Hay Lake | Apache | 2.0 mi | 33 acres |
| Hog Wallow Lake | Apache | 3.5 mi | 62 acres |
| Mexican Hay Lake | Apache | 4.9 mi | 165 acres |
| Geneva Reservoir | Apache | 4.9 mi | 50 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Tunnel Reservoir
How Big Is Tunnel Reservoir?
Tunnel Reservoir covers 39 acres in Apache County, Arizona.
What Is the Largest Lake in Apache County?
Many Farms Lake is the largest lake in Apache County, at 1,610 acres.
Largest Lakes in Arizona
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake Mohave | Mohave | 27,571 acres | - |
| 2 | Lake Havasu | Mohave | 18,560 acres | - |
| 3 | San Carlos Reservoir | Gila | 13,059 acres | - |
| 4 | Lake Pleasant | Yavapai | 9,186 acres | - |
| 5 | Theodore Roosevelt Lake | Gila | 9,075 acres | - |
All 198 Arizona 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 136872159). Verified October 30, 2026.