Urban Sites Sampled to Assess Invertebrate Assemlages
Net-spinning
caddis fly, Arctopsyche grandis, Colorado River, Grand County, Colorado.
Photo courtesy of Robert Zuellig, U.S. Geological Survey.
Map of Cycle I Sites
Map of Cycle II Sites
U.S. Department of the Interior, U.S. Geological Survey
Contact for NAWQA: nawqa_whq@usgs.gov
Maintainer: Jean A. Dupree - dupree@usgs.gov Privacy Statement ||
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Document URL- http://co.water.usgs.gov/nawqa/urbanPortal/html/ecology_invert_maps.html
Last Update: May 23, 2006