Hardtack Island, OR
Interactive topo map of Hardtack Island, OR
| Place Name: | Hardtack Island |
| Feature Class: | Island |
| US State: | OR |
| County: | Multnomah |
| Latitude: | 45.48 |
| Longitude: | -122.65 |
| Elevation (meters): | 3 m |
| Elevation (feet): | 9′ |
| USGS Quad: | Lake Oswego topo map |
| 7.5´ topo: |  |
| State topo index: | OR topo index |
| Alternate map versions: | OR 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 |