Dellenbaugh, Frederick Samuel, 1853-1935
Frederick Samuel Dellenbaugh, artist, topographer, explorer and author, was born September 13, 1853 in McConnelsville, Ohio. After graduating from high school in Buffalo, New York, Dellenbaugh's interest in painting and boating led his uncle Almon Harris Thompson to introduce him to John Wesley Powell. Thompson was Powell's brother-in-law and served as second-in-command and chief topographer of Powell's second expedition down the Colorado River in 1871-1873. Powell appointed the seventeen year old Dellenbaugh expedition artist and assistant topographer.
The expedition embarked at Green River, Wyoming, and passed the winter of 1871-72 at Kanab, Utah. In the early spring and summer of 1872, Dellenbaugh and Thompson explored north of Kanab through Potato Valley and discovered the Escalante River, the last major river discovered in the contiguous United States. They continued on to the Aquarius Plateau and the Henry Mountains. In August and September 1872, the expedition traveled through the Upper Grand Canyon, but Powell called a halt to the expedition at Kanab Creek, due to the dangerous currents in the Canyon. The group spent the winter of 1872-1873 creating a map of the area they had explored.
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