Pompey's Pillar (#62186255)
A short walk in the BLM land at Pompey's Pillar takes you to the famous etching signature of William Clark from 1806 when William Clark stayed here during their journey across western America. Pompey's Pillar, Montana.
BLM etching expedition historic historical history Lewis and Clark Lewis and Clark Expedition Montana national landmark National Monument NPS Pompey's Pillar rock art signature William Clark