The 150th anniversary of the 1869 Powell expedition-USGS participation in the Sesquicentennial Colorado River Exploring Expedition and reflections from the ∼1,000-mile journey down the Green and Colorado Rivers

Scott, A., & Snow, E. (2020). The 150th anniversary of the 1869 Powell expedition-USGS participation in the Sesquicentennial Colorado River Exploring Expedition and reflections from the ∼1,000-mile journey down the Green and Colorado Rivers. US Geological Survey Circular, (1475), 1–100. https://doi.org/10.3133/cir1475