Biological survey reports, Verde Valley, 1916
Taylor WP and Jackson HH. 1916. Biological survey reports, Verde Valley, 1916. Department of Interior, Fish and Wildlife Service. Washington, DC
Eason states that this work covers a large area, but much of it was accomplished in and near the present sections of the monument. He considered this to be one of the more reliable studies on birds and mammals of the area. This is a compilation of reports; Verde Valley Physiography-Jackson: Camp Verde & Montezuma Well mammals-Jackson, Taylor: Camp Verde & Montezuma Well birds-Jackson, Taylor.