Pompeys Pillar National Monument
Size: 3166px × 4780px
Photo credit: © Zachary Frank / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: billings, bureau, clark, creek, cretaceous, expedition, formation, hell, historic, inscription, land, landmark, lewis, management, montana, monument, national, pillar, pioneers, pompey, pompeys, river, rock, sandstone, states, united, usa, yellowstone