WestLand Resources conducted a survey of 37 mining features within the Rosemont Holdings and vicinity to determine if they were being used as bat roosts.
Buecher, D.C., R. Sidner, T. Strong, and A.L. Best. 2010. Rosemont Holdings 2009 Bat Roost Survey. Project No. 1049.14 CCO2 350B. Tucson, Arizona: WestLand Resources Inc. January 14.