Elwha Watershed Information Resource
USGS and NPS Scientists Sampling Macroinvertebrates
USGS and National Park Service scientists sampling macroinvertebrate communities in the Elwha River.
Credit: Jeff Duda, United States Geological Survey
USGS and National Park Service scientists sampling macroinvertebrate communities in the Elwha River.
Credit: Jeff Duda, United States Geological Survey