Stones Peak is a prominent 12,922-foot mountain in Rocky Mountain National Park, rising steeply above Forest Canyon and standing out near Estes Park as a major Front Range landmark. Its summit climbs more than 3,900 feet above the Big Thompson River in just two miles, and runoff from its slopes feeds tributaries of that river. Its high elevation creates an alpine subarctic climate shaped by snow and summer thunderstorms, with the Sprague Glacier on its southwest side. The mountain was named for glacial geologist and Colorado College professor George Hapgood Stone, who visited in 1886, and its name was officially adopted in 1932 after early documented climbing and recording in the Estes Park region.