Sandia Cave, also called the Sandia Man Cave, is an archaeological site near Bernalillo, New Mexico, within Cibola National Forest. First discovered and excavated in the 1930s, the site exhibits evidence of human use from 9,000 to 11,000 years ago. It was declared a National Historic Landmark in 1961. The site is open to the public, up a difficult half-mile trail off New Mexico State Road 165.