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Pompeys Pillar National Monument, Pompeys Pillar

(4.5/5 based on 130+ reviews on the web)
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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Reviews
TripAdvisor
  • We pulled off the freeway, ate lunch from our cooler, and went for a little walk into the interpretive center and up Pompeys Pillar. It's a short and easy walk to where we saw the famous carving in th...  more »
  • Physical evidence of the great L & C journey. There is an entrance fee and maybe not all that much to see. On the other hand, it's a very historical site with a nice visitor center and a few short hik...  more »
  • This was a delightful stop on our travels across Montana following Lewis and Clark. The displays were very interesting as was the movie shown. We climbed to the top of the pillar to see Clark's signat...  more »
Google
  • Great place to come visit for cool photo opportunities, pick-nicks, and learn about history. Amazing that there is a signature from 1806 in sandstone still readable today.
  • The views from the top are worth every step of the climb. The steps are many but not too steep. You can see for miles and see lots of wildlife. If you're lucky the marmots will entertain you. We went in May and it was beautiful.
  • A great overview of the Corps of Discovery in a very nicely done interpretative center. Even William Clark's carved name can be seen on the monument which is located in a beautiful natural setting.
  • Regular ranger guided walks or take a self guided tour anytime. They had a ranger stationed at Clark's signature to answer questions. Very easily accessible from the highway and worth a stop to stretch your legs on the steps.
  • Nice stop if you are in the area and want see a nice view and learn a bit about Lewis and Clark.