 Three of the smaller named glaciers occupy cirques near and above on the south and southeast sides, including the Watkins, Konwakiton, and Mud Creek glaciers.The oldest-known human settlement in the area dates to about 7,000 years ago.At the time of Euro-American contact in the 1820s, the Native American tribes who lived within view of Mount Shasta included the Shasta, Okwanuchu, Modoc, Achomawi, Atsugewi, Karuk, Klamath, Wintu, and Yana tribes.