Keywords: Report upon the Colorado River of the West BHL32741081.jpg Report upon the Colorado River of the West explored in 1857 and 1858 /by Lieutenant Joseph C Ives under the direction of the Office of explorations and surveys A A Humphreys Captain Topographical Engineers in charge ; By order of the Secretary of War 32741081 101475 46973 Map http //www biodiversitylibrary org/page/32741081 1861 10 5962/bhl title 46973 Gray Asa; United States Biodiversity Heritage Library Check categories 2015 October 28 PD-old-70-1923 Report upon the Colorado River of the West Images uploaded by Fæ Files from the Biodiversity Heritage Library Biodiversity Heritage Library Engelmann Herbarium collection |