John Alley Dam, SD
Interactive topo map of John Alley Dam, SD
| Place Name: | John Alley Dam |
| Feature Class: | Dam |
| US State: | SD |
| County: | Corson |
| Latitude: | 45.5 |
| Longitude: | -101.65 |
| Elevation (meters): | 706 m |
| Elevation (feet): | 2316′ |
| USGS Quad: | Cottonwood Creek SW topo map |
| 7.5´ topo: |  |
| State topo index: | SD topo index |
| Alternate map versions: | SD topographic maps Editions by year, direct download as GeoPDF. |
| 30´ x 60´ topo: | 1:100,000 scale map |
| 1° x 2° topo: | 1:250,000 scale map |