This report characterizes the distribution and diversity of talus snails (Sonorella spp.) along the "North Ridge" of the Santa Rita Mountains in Pima County, Arizona.
Schmalzel, R.J., and R. Archer. 2010. Rosemont Mine Project: Talus Snails (Sonorella, Helminthoglyptidae) and Talus Slopes of the North Ridge of the Santa Rita Mountains, Pima County, Arizona. Prepared for Rosemont Copper Company. Tucson, Arizona: WestLand Resources, Inc. April 15.