20140719_AZ_GrandCanyonGCYTrip_Dherasimtschuk E96A1319.jpg

By Southwest Biological Science Center January 14, 2015

River guide rows a raft through Grand Canyon on a Partners in Science trip with Grand Canyon Youth

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River guide rows a raft through Grand Canyon on a Partners in Science trip with Grand Canyon Youth

Sources/Usage

Public Domain.

Photograph by Freshwaters Illustrated in partnership with USGS Grand Canyon Monitoring and Research Center