Pompeys Pillar National Monument encompasses 51 acres on the banks of the Yellowstone River with a massive sandstone outcrop covering about 2 acres at its base and rising 120 feet high toward Montana’s Big Sky. The monument’s premier location at a natural ford in the Yellowstone River, and its geologic distinction as the only major sandstone formation in the area, have made Pompeys Pillar a celebrated landmark and outstanding observation point for more than eleven thousand years of human occupation. Hundreds of markings, petroglyphs, and inscriptions left by visitors have transformed this geologic phenomenon into a living journal of the American West.

Source: BLM Website (March 2023)

Establishment Pompeys Pillar National Monument — January 17, 2001

For More Information Please Visit The OFFICIAL BLM WEBSITE

The contents of brochures, site bulletins and trading cards (denoted with a colored caption) can be viewed by clicking on the cover. Most modern-day brochures, however, are cover only (denoted by a white caption) due to photograph copyrights. These items are historical in scope and are intended for educational purposes only; they are not meant as an aid for travel planning. The dates under each brochure do not reflect the complete range of years that a particular brochure was issued.

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2018

Annual Manager's Report: 2021, Pompeys Pillar National Monument (John Reffit, 2021)

Annual Manager's Report: 2022, Pompeys Pillar National Monument (John Reffit, 2022)

Map, Pompeys Pillar National Monument (BLM, 2015)

Manager's Report, FY2010, Pompeys Pillar National Monument (Irv Leach, 2010)

Manager's Report, FY2020, Pompeys Pillar National Monument (John A. Reffit, December 4, 2020)

National Register of Historic Places Nomination Form

Pompeys Pillar (Blanche Higgins, June 15, 1976)

Proclamation 7396—Establishment of the Pompeys Pillar National Monument (William J. Clinton, January 17, 2001)

Record of Decision and Resource Management Plan (September 2015)

Pompeys Pillar National Monument