Sierrita Mountains
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- Appendix a – Data for Sample Sites, Avra Valley Sub-Basin, 1998-2001
- Hike Database
- Tumacacori Historic Resource Study
- Rana Chiricahuensis
- Sabino Canyon Ruin 3 History of Sabino Canyon Ruin 4 Membership News 7 Join Us 7
- Geology of the Cerro Colorado Mountains, Pima County, Arizona
- SUBSURFACE STRATIGRAPHY and GEOTHERMAL RESOURCE POTENTIAL of the AVRA VALLEY, PIMA COUNTY, ARIZONA By
- U. S. Department of the Interior U.S. Geological
- Pima County Comments
- Fall 2003 Sky Island Alliance 1 INSIDE: Tumacacori Highlands
- 5.4.3 Brawley Wash
- FIELD GUIDE to "A" MOUNTAIN and DESCRIPTION of SURROUNDING REGION, PIMA COUNTY, ARIZONA by Thomas G
- Riparian Habitats of the Southeast Sierrita Mountains: Vanished Perennial Habitats
- Altar Valley Conservation Alliance PO Box 27906 Tucson, Arizona 85726
- Ore Deposits of the Sierrita Mountains, Pima County, Arizona
- Riparian Habitats of the Southeast Sierrita Mountains: Vanished Perennial Habitats
- Keystone Peak Prescribed Burn Environmental Assessment DOI-BLM-AZ-G020-2011-0033-EA
- Ground Wa^Er in Avra-Altar Valley, Arizona \