Charting a Better Course for the Å·ÃÀ¿Ú±¬ÊÓƵ River: Identifying the Data and Concepts to Shape the Interim Guidelines Renegotiation Thursday, June 6th and Friday, June 7th, 2019 On June 6-7, 1869, John Wesley Powell’s expedition down the Å·ÃÀ¿Ú±¬ÊÓƵ was prepping for passage through the Canyon of Lodore, an arduous journey...