I've driven by here I bet like 40 times in my life time and never stopped. I sure am glad I did this trip! It was so beautiful up on the pillar and you can see signatures in the rock as well......guess whos!?! The visitors center has a nice interpretive area and a really nice gift shop with clean bathrooms too! It's a nice stroll up to the boardwalk and well worth the steps up to the top.

A great quick stop and wonderful history lesson! It was 100° today so it made the step-climbing with no shade somewhat uncomfortable and I rushed through it. But the nice AC in the visitors center was wonderful! Bathrooms spotless! (There are outhouses on the property too). Friendly staff. The time of day put a glare on the Clark signature but it was still a magnificent site. The grounds are beautiful too! Honestly I'd be happy to pay the $7 to get into the place just so I could use those clean bathrooms if I'm ever traveling through again!

Had wanted to visit this National Monument since it was designation as such in 2001. The exhibits were very informative and well presented. Staff was friendly and very knowledgeable. Hike up the monument were a bit much for this old dude ... but plenty made the trek.

This is a rock. A huge rock jutting out of the ground like several others in the area. However, this rock has William Clark’s signature on it (of Lewis and Clark fame). He carved it there in 1807. Other names are on it too. Clark came through here along the Yellowstone River on his journey. Thee are other places he stopped in the area as well. You can climb up to the top by a wooden path and see breathtaking views. It also has an interpretation center with a gift shop. This is one of those stops you can make along the highway for a quick rest. We came to stay for 10 minutes and stayed an hour.

Having read about Lewis & Clark's expedition I was very excited to see a physical remnant of their time in this area. It's amazing to me that this Clark's signature has survived all these years, and even more amazing to me to find out that the monument just came into the national park system in 2001! Prior to that it was privately owned, and I appreciate the owners who protected this piece of history for so long! Pompey's Pillar NM is easy to find and most definitely worth a stop. They have a great visitor's center and the walk out to the pillar is easy. There are stairs, but there are benches along the way to take a break if needed. Clark's signature is about 1/3 of the way up and you can take the stairs the rest of the way to the top of the pillar for wonderful views. I appreciated that there was a Ranger at the landing closest to Clark's signature who could answer questions and give the history behind the monument. My only word of warning, we were there in August and planned to have a picnic as there are several lovely spots with tables. We didn't realize that the warning sign about mosquitos at the visitor's center was serious. The mosquitoes literally chased us out of the picnic area. Wear bug spray or go in the non-bug seasons!