Blue Blanket Island (historical), SD
Interactive topo map of Blue Blanket Island (historical), SD
| Place Name: | Blue Blanket Island (historical) |
| Feature Class: | Island |
| US State: | SD |
| County: | Corson |
| Latitude: | 45.5 |
| Longitude: | -100.38 |
| Elevation (meters): | 490 m |
| Elevation (feet): | 1607′ |
| USGS Quad: | Mobridge 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 |