Lakes / Arizona / Apache County / Round Rock Reservoir
Round Rock Reservoir, Arizona
56 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Arizona
36.49 degrees N, 109.45 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 Round Rock Reservoir Stacks Up
- Larger than 38% of the 198 lakes counted in Arizona.
- About 152 miles from Flagstaff, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Many Farms Lake | Apache | 12 mi | 1,610 acres |
| Big Lake | Apache | 15 mi | 27 acres |
| Tsaile Lake | Apache | 20 mi | 265 acres |
| Wheatfields Lake | Apache | 28 mi | 226 acres |
| Toh De Niihe | Apache | 29 mi | 117 acres |
| Walker Creek Reservoir | Apache | 33 mi | 26 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Round Rock Reservoir
How Big Is Round Rock Reservoir?
Round Rock Reservoir covers 56 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 126678754). Verified October 30, 2026.