Pompeys Pillar National Monument, Pompeys Pillar

4.1
#32 of 95 in Nature in Montana
Pompeys Pillar National Monument is a rock formation located in south central Montana, United States. Designated a National Monument on January 17, 2001, and managed by the U.S. Bureau of Land Management, it consists of only, making it one of the smallest National Monuments in the U.S. It was previously designated a National Historic Landmark on July 25, 1965. The new Pompeys Pillar Interpretive Center opened in 2006. Exhibits in the 5,700-square foot center relate the journey of Captain William Clark and his detachment, including Sacagawea and her son Pomp, down the Yellowstone River Valley in 1806.The pillar itself stands 150 feet (45 m) above the Yellowstone River and consists of sandstone from the late Cretaceous Hell Creek Formation, 75 – 66 million years ago. The base of the pillar is approximately 1acre.The pillar features an abundance of Native American petroglyphs, as well as the signature of William Clark, co-leader of the Lewis and Clark Expedition. Clark's inscription is the only remaining physical evidence found along the route that was followed by the expedition.
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Pompeys Pillar National Monument Reviews
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TripAdvisor Traveler Rating
TripAdvisor Traveler Rating 4.5
170 reviews
Google
3.5
TripAdvisor
  • This was wonderful, such a historical site. They did a great job on the displays and walking around the monument was so relaxing and felt like we were right with Lewis and Clark in their discoveries. ...  more »
  • We were travelling by car from Bismarck, ND to Seattle WA, along the I94/I90 and caught sight of the turning to the Pillar. As Australians, we knew a little of the Lewis and Clark exploration and were...  more »
  • Museum is well put together. Lots of interesting displays. The museum is handicap accessible, but to view the pillar itself is not. There are quite a few steps up to see the Clark signature, but well ...  more »
Google
  • 4 stars for what it is, which is a pleasant break from driving not far off the highway. Unique part of American history. Nice visitor center with info on Lewis and Clark.
  • Super clean rest area.
  • Five stars because of the history of the spot. Pompeys Pillar was originally named Pompy's Tower by Captain Clark of the Lewis and Clark expedition in 1806 on their return East bound. 'Pomp' or 'Little Pomp' was the nickname the men had given Sacajawea's son who was carried the entire way to the West Coast and back.
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