01931nam 2200433 450 991071666410332120210914123746.0(CKB)5470000002523523(OCoLC)1259440263(EXLCZ)99547000000252352320210708d2020 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierThe 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 /by Annie Scott and Eleanour SnowVersion 1.1, December 14, 2020.Reston, Virginia :U.S. Department of the Interior, U.S. Geological Survey,2020.1 online resource (vii, 88 pages) illustrations (chiefly color), color mapsCircular / U.S. Geological Survey,2330-5703 ;1475"First release: December 3, 2020, online. Revised: December 14, 2020 (ver. 1.1), online and in print"--Title page verso.Includes bibliographical references (pages 84-85).150th anniversary of the 1869 Powell expedition Scientific expeditionsGreen River (Wyo.-Utah)Scientific expeditionsColorado River (Colo.-Mexico)Colorado River Watershed (Colo.-Mexico)Environmental conditionsGreen River Watershed (Wyo.-Utah)Environmental conditionsScientific expeditionsScientific expeditionsScott Annie(Anne Marie),1417355Snow Eleanour S.Geological Survey (U.S.),GPOGPOBOOK9910716664103321The 150th anniversary of the 1869 Powell expedition3525448UNINA