A creek bed at Rocky Flats National Wildlife Refuge in late winter. (Daniel J. Schneider)
A creek bed at Rocky Flats National Wildlife Refuge in late winter. (Daniel J. Schneider)
Creek bed at Rocky Flats
A creek bed at Rocky Flats National Wildlife Refuge in late winter. (Daniel J. Schneider)
A creek bed at Rocky Flats National Wildlife Refuge in late winter. (Daniel J. Schneider)