Publisher: Filter Press (November 1, 2006)
Format: PDF / Kindle / ePub
Size: 7.8 MB
Downloadable formats: PDF
John Wesley Powell's insatiable interest led him to discover the realm of the U.S. marked ""unknown"" on maps -- a space he mapped and named the Grand Canyon. Powell used to be a one-armed Civil battle veteran whilst he led the 1st excursion down the Colorado River in the course of the Grand Canyon in 1869.