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Pompeys Pillar National Monument

Address

3039 Hwy 312
Pompeys Pillar, MT 59064
Last Updated: April 13, 2018

Hours

Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Special hours: Visitors Center hours listed are for May-Sept. October VC hours are 9-4. Monument open from dawn until dusk 365 days a year.

Map

About Pompeys Pillar National Monument

Pompeys Pillar National Monument features the signature of Captain William Clark which he etched on the rock on July 25, 1806, which is the only remaining visual physical evidence on the Lewis and Clark Trail. The Pillar overlooks the Yellowstone River and is about 25 miles east of Billings.

1st Annual Fall Festival at Pompeys Pillar National Monument is October 4-7, 2018.