Green Island Wetlands, Iowa

Theodore Roosevelt NP, North Dakota

Mississippi River, Mud Lake, Iowa

Green Island Wetlands, Iowa

Li. Maquoketa River Valley, Iowa

Bolsa Chica Ecological Reserve, California

Li. Maquoketa River Valley, Iowa

Mississippi River, Le Claire, Iowa

Li. Maquoketa River Valley, Iowa

Grand Tetons, Wyoming

Dubuque, Iowa

Badlands National Park, South Dakota

Bighorn Mountains, Wyoming

Theodore Roosevelt National Park, North Dakota

Great Salt Lake, Utah

Mississippi River, Mud Lake, Iowa

Custer State Park, Black Hills, South Dakota

Bolsa Chica Ecological Reserve, California

Custer State Park, Black Hills, SD

Great Salt Lake, Utah

MIssissippi River, Dubuque, Iowa