Mount Everts is located in the northern part of Yellowstone National Park. Huckleberry Ridge Tuff and the Lava Creek Tuff are exposed on Mount Everts. Photograph by S.R. Brantley on 19 May 2001.

The cliffs that rim Mount Everts in the northern part of Yellowstone National Park east of Mammoth Hot Springs provide exceptional exposures of both the 2.1-million-year-old Huckleberry Ridge Tuff and the 640,000-year-old Lava Creek Tuff. Photograph by Robert L. Christiansen on 16 October 1967. More info.

Welded Huckleberry Ridge Tuff forms a "rimrock" ledge on Mount Everts just east of Mammoth Hot Springs. This tuff, 2.1 million years old, here lies unconformably on eroded marine sedimentary rocks of Cretaceous age (about 70 million years). At the base of the welded tuff is a white layer of fallout ash of the Huckleberry Ridge Tuff. The Cretaceous sedimentary rocks beneath this ash are reddened , at least in part by heating from the overlying volcanic layers. Photograph by Robert L. Christiansen in July 1983.