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Pompeys Pillar National Monument, Pompeys Pillar, MT

Photo: Bureau of Land Management, Public domain, via Wikimedia Commons. Cropped and resized.

SightseeingHistory BuffOutdoor Adventure

Pompeys Pillar National Monument

Climb a boardwalk up a sandstone butte to see the signature William Clark carved on July 25, 1806.

3039 US Highway 312 · Pompeys Pillar, MT

About Pompeys Pillar National Monument

This sandstone butte rises about 120 feet above the Yellowstone River, 25 miles east of Billings, and carries the signature William Clark carved on July 25, 1806. A boardwalk of about 200 steps climbs past the inscription and hundreds of other etchings and petroglyphs to the top. The visitor center covers Clark's trip down the Yellowstone Valley with Sacagawea and her son Pomp, and shady riverside grounds hold picnic tables and mowed trails. At 51 acres, it is one of the smallest national monuments.

  • #national monument
  • #lewis and clark
  • #petroglyphs
  • #boardwalk climb

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What's around here?

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