Hall's energy and competence attracted attention in Washington and he was promoted to serve in the following posts: In 1930, Hall co-wrote (with Frederick Law Olmsted's sons) a report for an Oakland, California foundation which "...advocated a revolutionary new concept: a regional approach to park development, the creation of truly large, interconnected parklands that would define an urban landscape..."[1], and which led directly to the establishment of the East Bay Regional Park District in the Oakland area In 1933 - 1934, Hall led an expedition to the Rainbow Bridge - Monument Valley area, which produced thousands of valuable photographs of Indian life in the Four Corners area of that time.
Yosemite Valley: An intimate guide (National Parks Publishing House, 1929) Olmsted Brothers and Ansel F. Hall.
Report on proposed park reservations for East Bay cities, California / prepared by Olmsted Brothers and Ansel F. Hall, in consultation with the East Bay Regional Park Association ; for the Bureau of Public Administration, University of California (1930)[2] Hall, Ansel Franklin.
General report on the Rainbow Bridge-Monument Valley Expedition of 1933 (University of California Press, 1934) Hall, Ansel Franklin.
Mesa Verde, a brief guide (publishing details unknown) Turner, Jack, author, and Hall, Ansel F, photographer.
Early Images of the Southwest: The Lantern Slides of Ansel F. Hall (Roberts Rinehart Publishers, 1998).
Landscapes On Glass: Lantern Slides For The Rainbow Bridge - Monument Valley Expedition With a foreword by President Bill Clinton.