Spatial Coverage
- Rome4
- Arizona3
- Egypt3
- Green Bay (Wis. and Mich.)3
- New Mexico3
- Niagara River (N.Y. and Ont.)3
- Pennsylvania3
- Apostle Islands (Wis.)2
- Chicago2
- Chicago (Ill.)2
- Detroit River (Mich. and Ont.)2
- Huron, Lake (Mich. and Ont.)2
- Indiana2
- Mississippi2
- Saint Clair River (Mich. and Ont.)2
- Saint Clair, Lake (Mich. and Ont.)2
- Saint Marys River (Mich. and Ont.)2
- Sandusky Bay (Ohio)2
- Umpqua National Forest (Or.)2
- Umpqua National Forest.2
