The United States Congress designated the Otay Mountain Wilderness (map
) in 1999 and it now has a total of 16,893 acres
All of this wilderness is located in California
and is managed by the Bureau of Land Management.
The Otay Mountain Wilderness is located near the U.S.-Mexico border in eastern San Diego County. The mountain represents a unique ecosystem, home to twenty sensitive plant and animal species, including the endangered quino checkerspot butterfly, the only known stand of Tecate cypress, as well as the only known population of the Mexican flannel bush. The area was recommended by the Bureau of Land Management for Wilderness designation more than ten years before it was designated.
Because of its proximity to the international border with Mexico, however, the Border Patrol continue to work in the Wilderness constructing and patrolling a section of the Border Wall.