• 1 1/4 inch diameter
• Cast in fine pewter
• Strong magnet embedded in back
• Mounted on story card

Place Name: Pompeys Pillar
Historic Elevation: 2997.63 ft.
Coordinates: N45 59 43 W108 00 17
Location: Pompeys Pillar National Monument, Montana, USA
MarkerSleuth Photo Contributor: Jeff Conderman
Twenty-five miles northeast of Billings, Montana rests the large sandstone formation known as Pompeys Pillar. The Pillar was visited by Captain William Clark of the Lewis and Clark Expedition on July 25, 1806. Captain Clark etched his name and the date on the rock which is the last visible, physical evidence of the Expedition. It also contains many Native American petroglyphs, suggesting that area has been inhabited by humans for around 11,000 years.