Two ancient North American structures have collapsed within days of each other as a tribe has warned the 190-million-year-old ...

Some residents and an Oneida tribal member believe the three boulders on the mound are "grandfathers," ancient markers with historical significance. Many ancient burial mounds have been destroyed ...

Authorities are seeking the public’s help in finding individuals who desecrated ancient, protected tribal rock carvings near Bishop, California. The petroglyphs at Volcanic Tableland were ...