Inyan Kara Mountain, Black Hills National Forest

Inyan Kara Mountain is a mountain associated with the Bear Lodge Mountains of Crook County, Wyoming that is considered sacred by the Lakota people, particularly for mothers in childbirth. Inyan Kara stands apart from the main body of the Black Hills, with an elevation of 6,368 feet. The mountain was stated to rumble on quiet days by the local Native Americans and by early explorers. No mention of the noises are found after 1833; the noise has been attributed to gas escaping from burning coal seams. ()