Location: Los Angeles County, California

Named (ca.1925) by USGS Surveyor Don McLain for his friend and one time co-worker, Washington Bartlett "Dusty" Lewis (1884-1930), a conservation minded Supervisor (1916-17), then first Superintendent (1917-28) of Yosemite National Park, and Assistant Director of the NPS (1928-30). Yosemite Librarian Linda Eade relates that he was born in Marquette Michigan, received a degree in Engineering from the University of Michigan (1907), then worked as a topographer and in a number of related capacities throughout the west, in Alaska, and Patagonia for the USGS and the National Geographic Society. He specialized in "rapid reconnaissance topography" and worked in and around the San Gabriels (1906-19). Stephen Mather hand-picked him for this NPS post because of his wide record of experience and his well known love of the outdoors. While Superintendent the major development of roads and trails, the construction of buildings for headquarters and personnel, and the installation of public-utility systems still in place were accomplished. He is also responsible for the "Interpretive Naturalist Program". Throughout his tenure he is reputed to have maintained affection and loyalty from his staff and the respect of everyone else who dealt with him.

Name first appears on USFS Angeles National Forest map (1931).

Peak was on the original 1946 HPS Peak List. Weldon Heald climbed this peak in 1945.