A boardwalk leads to Capt. Clark's signature and to the top of the pillar. Trails lead visitors past a replica of Captain Clark's canoes and to a view of the 670 mile-long Yellowstone River.
The Pompeys Pillar Historical Association, in conjunction with the Bureau of Land Management, hosts "Clark Days" the last weekend of July each year. River floaters, reenacting Captain Clark's canoe voyage, arrive at the Pillar during the afternoon. A buffalo barbeque, entertainment, living history demonstrations and interpretive activities are scheduled for the event, which will be the last Saturday and Sunday in July.
The Pillar overlooks the Yellowstone River about 25 miles east of Billings, Montana. The area is easily accessible from Interstate 94, using exit 23, or from State Highway 312. The Pillar is a sandstone butte or mesa covering about 2 acres at its base and standing about 150 feet high. Because it is the only sandstone outcrop on the south side of the Yellowstone River for several miles in either direction, it has been a landmark for centuries.
Please visit Pompey's Pillare website here.