Pompeys Pillar: Where Montana History Comes to Life

During my in-laws’ visit from out of state, my husband and I wanted to share a piece of Montana’s rich past with them. We knew right away that Pompeys Pillar was the perfect place to go.

There’s something almost magical about standing in a place where history feels alive, where the only remaining physical evidence of the Lewis and Clark Expedition is still etched into stone.

READ MORE: Driving the Beartooth Highway: Montana’s Most Beautiful Road Trip

A Landmark of Beauty and History Along the Yellowstone

Located about 30 miles east of Billings along Interstate 94, Pompeys Pillar rises 150 feet above the Yellowstone River. This sandstone outcrop has stood as a silent witness to centuries of history, offering both beauty and significance to all who visit. Its most famous feature is the inscription William Clark carved into the rock in 1806 on the return journey of the Lewis and Clark Expedition. His signature, still visible today, serves as a tangible reminder of one of America’s greatest adventures of exploration.

The Sweet Story Behind Pompeys Pillar’s Name

The name “Pompey’s Pillar” has a heartfelt origin. William Clark named the formation after Sacagawea’s young son, Jean Baptiste Charbonneau, whom he affectionately nicknamed “Pomp” or “Little Pomp.” Clark admired the boy’s lively spirit, and by giving his nickname to this striking bluff, he tied family affection to a landmark of national history. More than two centuries later, the name still reflects that connection.

William Clark’s Signature: A Moment Frozen in Time

Perhaps the most remarkable part of visiting Pompeys Pillar is seeing Clark’s actual signature carved into the sandstone in July 1806. It’s the only surviving physical evidence of the Lewis and Clark Expedition still visible on the landscape. Standing before it feels surreal. you realize you’re looking at a moment frozen in time, left by one of America’s greatest explorers. That simple inscription bridges past and present in a way that no textbook ever could.

A Proud Junior Ranger Moment

Our son was thrilled to learn he could become a Junior Ranger during our visit. He eagerly completed the activities in his booklet, soaking up knowledge about history, wildlife, and conservation. The highlight came when he proudly raised his right hand and was sworn in as a Junior Ranger, grinning from ear to ear as he promised to share what he learned with others. It was one of those moments a parent tucks away forever.

The Volunteers Who Bring History to Life

Another highlight of our visit was the people. The volunteers and staff at Pompeys Pillar greeted us with warmth and enthusiasm. They were eager to share their knowledge, answer questions, and make sure visitors felt welcome. Their passion for preserving history and making the experience enjoyable added an extra layer of meaning to our day.

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Why Pompey’s Pillar Is More Than a Monument

Pompeys Pillar is so much more than a historic site, it’s an experience that ties the past to the present. Here, you’re not just reading about Lewis and Clark; you’re standing where Clark stood, touching the same stone he touched, and leaving with a deeper appreciation for our country’s history. For our family, visiting Pompey’s Pillar wasn’t just about seeing a monument, it was about creating a memory that blended learning, adventure, and connection. I hope you'll enjoy these photos I took of our visit and that you'll be inspired to visit yourself!