|Las Cienegas National Conservation Area|
IUCN category V (protected landscape/seascape)
|Location||Pima and Santa Cruz counties, Arizona, United States|
|Nearest city||Sierra Vista, Arizona|
LAS CIENEGAS NATIONAL CONSERVATION AREA Latitude and Longitude:
|Area||45,000 acres (180 km2)|
|Governing body||Bureau of Land Management|
|Website||Las Cienegas National Conservation Area|
Once facing an uncertain future that almost certainly included housing and commercial development, today more than 45,000 acres (180 km2) of rolling grasslands and woodlands in Arizona’s Pima and Santa Cruz counties are 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 are irresistible to both people and wildlife. Ciénega Creek, with its perennial flow and lush riparian corridor, forms the lifeblood of the NCA and supports a diverse plant and animal community. 
Thanks to the efforts of local governments, elected officials and the public, the Empire and Cienega ranches, along with portions of the adjacent Rose Tree and Vera Earl ranches, are now 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. 
Bracket fungus in the NCA.
- "Las Cienegas National Conservation Area: FY 2011 Annual Manager's Report" (PDF). 2011. Retrieved 2013-12-08.
- "Las Cienegas NCA - BLM Arizona". United States Department of the Interior. Archived from the original on 2014-06-23. Retrieved 2014-07-21. This article incorporates text from this source, which is in the public domain.