The Intermountain West Joint Venture (IWJV) is a partnership of government agencies, nongovernmental organizations, and other public and private landowners for the conservation of bird habitats[1] in the inter-mountain areas of the western United States.
Its primary objective is to address conservation issues for about 40 waterbird species which use the marshes, playas, riparian zones, lakes and other wetlands throughout its extent.
[3] Its region of operation covers all of Idaho, Nevada, and Utah, and portions of Arizona, California, Colorado, Montana, New Mexico, Oregon, Washington, and Wyoming.
It has boundaries delineated by the border with Canada to the north and Mexico to the south,[4] the Rocky Mountains to the east, and the Sierra Nevada and Cascade Range to the west,[3] and includes the "Great Basin, Columbia Basin, Colorado Plateau, and Wyoming Basin physiographic regions and their associated mountain ranges".
[5] The California Action Group was established to determine focus areas for the IWJV in California,[2] for which it identified: the Klamath Basin, coordinated with the Oregon Action Group; the Carson River and Stillwater Sink, coordinated with the Nevada Action Group; the areas of the Lower Colorado River, Salton Sea, Imperial Valley, Coachella Valley, and Mystic Lake, coordinated with the Arizona Action Group; the Modoc Plateau, Pit River, and Surprise Valley; Honey Lake and Sierra Valley; and the Mono Lake Basin, Owens River, Walker River and Adobe Valley.