Friends Office: 406-969-5380       Monument: 406.875.2400
1523 14th St. West, Ste. 2
Billings, MT 59102

Mailing Address:
P.O. Box 23535
Billings, MT 59104

Welcome to Friends of Pompeys Pillar

The gates for drive-in visitation will be closed for the rest of the season starting Friday, October 23, 2020. As always, the site is open daily from sunrise to sunset for walk-in visitors, year round.

The Visitor Center did not open this season due to the COVID-19 pandemic.

The Boardwalk leading up to the Pillar has been closed since March 6, 2020 and will remain closed for rock stabilization work. Please check back with us next season on the rock stabilization progress!

NOTE: Though the Visitor Center and Boardwalk remain closed, we still encourage you to visit! There are many other key features at the site that await your arrival. Please come on out and explore our lovely nature trails, outdoor exhibits, and our Yellowstone River-Walk, all of which are accessible all year-round. Learn about the site and make a mission out of it by downloading the Agents of Discovery App! Learn more about the app here.

The Governor of Montana has issued specific directives for out of state travelers entering the state. The directive specifics can be found by clicking here.

If you have any questions about the state directive, please contact the Governor’s office.

When recreating on public land, please follow CDC guidance to slow the spread of infectious diseases: maintain social distancing, cover your mouth and nose when you cough or sneeze, and stay home if you feel sick.

For more information and CDC guidelines, click here.


The staircase and boardwalk that leads to the signature and to the top of Pompeys Pillar is currently restricted from visitor access until further notice. To ensure the safety of the public, the restrictions will be in place while the Bureau of Land Management conducts an analysis and stabilization of the rock formation’s outcroppings. All other adjacent lands and trails will remain open and accessible.

For more information on the rock stabilization efforts click here.

Full news release can be found here.


Buses bring school children to visit Pompeys Pillar National Monument thanks to transportation funds provided by Pompeys Pillar Historical Association


Your donation goes directly toward providing transportation so school children may visit Pompeys Pillar National Monument every year. 

Please click on the green “DONATE” button at the top of this page.


Opening day for the 2020 Season: May 23, 2020 

We invite you to take a journey through our website to explore and learn more about the history of Pompeys Pillar National Monument.

We are a 501 (c) (3) non-profit organization established in 1989 to support Pompeys Pillar National Monument, which contains the last remaining inscription of the Lewis and Clark Expedition of 1803-1806. Our mission is to preserve and protect the Monument by educating visitors through interpretation, special projects, and by supporting the Bureau of Land Management (BLM) in its management of the site. The effort of the Pompeys Pillar Historical Association was a driving force to get this site into the public lands domain, which resulted in the purchase of the historical land from the Foote family by the BLM in 1991. By working cooperatively with the BLM in the planning and administration of the site, the Pompeys Pillar Historical Association successfully accomplishes this mission.

We look forward to your visit!

Events – 2020

Please visit our Facebook page for more detail on upcoming events!

Sept 27th – CANCELED Third Annual Fall Festival 8am – 4pm • Free Admission • Honoring All Military, Veterans & First Responders!

Due to COVID-19 and the uncertainty following the weeks and months ahead, we’ve made the difficult decision to cancel our annual Fall Festival and Rock the Run 5k race. Please know that we will put our very best efforts into bringing you a wonderful Fall Festival and Rock the Run in 2021! 

Sept 27thCANCELED Rock the Run 2020 • 5K Fun Run/Walk • Race Starts At 8:30AM

July 25th – Signature Day • Free admission 

June 1st – National Trails Day • Free Admission 

February 11th – Baby Pomp Birthday Celebration Fundraiser



 Walk-ins after hours are always welcome. Approximately a one mile walk from gate to Pillar.

May – September
   Front Gates: 8:00am – 5:30pm
   Interpretive Center: 9:00am – 6:00pm
   Gift Store: 9:00am – 5:30pm

October (Weather Dependent)

    Front Gates: 8:00am – 4:00pm
    Interpretive Center: 9:00am – 4:00pm
    Outbound Gate: Closes at 4:30pm

RV parking spots are available.


3039 Highway 312 Pompeys Pillar, MT
46° N -108° W
(406) 875-2400

The Pillar overlooks the Yellowstone River about 25 miles east of Billings, Montana. The area is easily accessible from I-94, using exit 23.


Only during operational months and hours.

$25 Commercial 1-6 people
$40 Commercial Van 7-24 people
$100 Commercial Bus 25+ people
$20 Pompeys Pillar Membership Pass


Pompeys Pillar National Monument accepts and sells the following Interagency passes:
    Senior (Golden Age)
    Volunteer (not available for sale)