U.S. Geological Survey:
Swift River Waterfall
U.S. Geological Survey:
#TBT : Cape Cod, Massachusetts
U.S. Geological Survey:
Rice Field Sediment Sampling
U.S. Geological Survey:
Chiwawa River
U.S. Geological Survey:
Mianus River
U.S. Geological Survey:
Colorado River
U.S. Geological Survey:
Trash From Flooding
U.S. Geological Survey:
Winter View
U.S. Geological Survey:
Water Walker
U.S. Geological Survey:
Big Wood River
U.S. Geological Survey:
Water
U.S. Geological Survey:
USGS Streamgage at Soper Branch Creek
U.S. Geological Survey:
McWay Falls
U.S. Geological Survey:
Strike a Pose
U.S. Geological Survey:
Folly Island, Maine
U.S. Geological Survey:
Acadia National Park
U.S. Geological Survey:
St. Mary Lake, Glacier National Park
U.S. Geological Survey:
Happy Anniversary California
U.S. Geological Survey:
1869 Windmill at North Platte Station
U.S. Geological Survey:
2009 Atlanta Floods
U.S. Geological Survey:
South Falls, OR
U.S. Geological Survey:
Duckweed Pond
U.S. Geological Survey:
USGS Streamgage
U.S. Geological Survey:
Falling Spring Falls, VA
U.S. Geological Survey:
Saugus Iron Works Forge and Mill
U.S. Geological Survey:
Waterfall
U.S. Geological Survey:
Streamgage in Newport, WA
U.S. Geological Survey:
Hydrologist Measuring Streamflow
U.S. Geological Survey:
Calf Creek Canyon
U.S. Geological Survey:
Water Quality Education Poster
