 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.