https://experts.arizona.edu/en/publications/soil-solarization-in-high-tunnels-in-the-semiarid-southwestern-un/
Soil solarization in high tunnels in the semiarid southwestern United States - University of Arizona
southwestern united states
https://www.canr.msu.edu/resources/Beef-Production-in-the-Southwestern-United-States-Strategies-Toward-Sustainability
Beef Production in the Southwestern United States: Strategies Toward Sustainability - CHANS-Net:...
From grazing lands to meat packing, beef production systems in the United States are striving to meet global demands without compromising environmental quality...
southwestern united statesin the
https://teachersinstitute.yale.edu/curriculum/units/1991/1/91.01.01.x.html/
91.01.01: Between Aztlan and Quivira: Europeans and Indians in the Southwestern United States