Author
Kenton Ranger District (Mich.)
4
United States. National Park Service
4
Watersmeet Ranger District (Mich.)
3
Sleeping Bear Dunes National Lakeshore (Agency : U.S.)
2
United States. Congress. House. Committee on Natural Resources,
2
United States. Congress. Senate. Committee on Energy and Natural Resources,
2
Barr, Nevada,
1
Isle Royale National Park (Agency : U.S.),
1
United States,
1
United States. Congress. Senate. Committee on Energy and Natural Resources
1