1931 Isle Royale Imagery
Upper Midwest Environmental Sciences Center. 1931. 1931 Isle Royale Imagery
Isle Royale National Park 1931 airphoto mosaic
- Type
- Aerial Photograph
- Authors
- Upper Midwest Environmental Sciences Center
- Date of Issue
- 1931
- Units
- ISRO
- Keywords
- aerial imagery, airphoto, historical imagery, Isle Royale National Park, Michigan