In 1970 the Mount Baldy Primitive Area became a part of the national wilderness system. Its 7,079 acres lie on the eastern slope of Mount Baldy and are the headwaters for the Black River and the Little Colorado River. Two trails pass through the Wilderness to a point near the top of Mount Baldy. The trails do not access the very top of the mountain since it is on land owned by the White Mountain Apache Tribe and the Tribe does not allow access because the mountain is considered sacred to them. This is a high-elevation experience with elevations ranging from 9,000 feet to 11,550 feet so hikers should plan accordingly. The vast majority of people in the Wilderness are day users and maps are available at local Forest Service offices.