Pompey’s Pillar National Monument

Historic Site in Billings

At the base of the monolithic rock where William Clark (of Lewis and Clark fame) carved his name in 1806 is a small visitor center that illustrates an interesting period when the parties split for a month on their return trip. Displays include replicas of the bullboats some of Clark's men used to float the Yellowstone after their horses were stolen.

30 miles east of Billings.

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