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.

Description

Facing housing and commercial development, more than 45000 acre 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 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 is dedicated to preserving the historic buildings and surrounding landscapes.

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