http://gallery.usgs.gov/images/logos/usgs_only.jpg http://gallery.usgs.gov/ en-us OC_Web@usgs.gov (Office of Communications Web Group) http://gallery.usgs.gov/images/USGS.gif http://gallery.usgs.gov/ http://gallery.usgs.gov/photos/09_16_2011_yDTg83Ivv5_09_16_2011_0 USGS Hydrologist, Guy Foster collects a sample of blue-green algae in Milford Lake, Kansas.

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