3-826: The Las Cienegas National Conservation Area is a National Conservation Area of Arizona , located in the transitional zone between the Sonoran Desert and the Chihuahuan Desert . Facing housing and commercial development, more than 45,000 acres (180 km) of rolling grasslands and woodlands in Arizona’s Pima and Santa Cruz counties was protected as a National Conservation Area. The region’s rolling grasslands, oak -studded hills that connect several "sky island" mountain ranges, and lush riparian corridors attract both people and wildlife. Ciénega Creek , with its perennial flow and riparian corridor, supports
6-412: A diverse plant and animal community. The Empire and Cienega ranches , along with portions of the adjacent Rose Tree and Vera Earl ranches, were put under public ownership and managed by Bureau of Land Management (BLM) under the principles of multiple-use and ecosystem management for future generations to use and enjoy. The BLM has formed a partnership with the nonprofit Empire Ranch Foundation, which
9-703: Is dedicated to preserving the historic buildings and surrounding landscapes. National Conservation Area National Conservation Area is a designation for certain protected areas in the United States . They are nature conservation areas managed by the Bureau of Land Management (BLM) under the National Landscape Conservation System . Restrictions vary between these conservation areas, but generally they are not leased or sold under mining laws and motorized vehicle use
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