Bird Watching#Heritage#Hiking#History#Outdoor Activity#Photography#Picnicking#Sightseeing#Wildlife ViewingB.L.M. TrailGift Shop#Handicapped Accessible#Interpretive Display#Parking#Pets Allowed#Public Restroom#Traildbo2026-05-12T17:01:15Pompeys Pillar2739h.jpgBMPThe Pillar overlooks the Yellowstone River about 25 miles east of Billings, Montana. Easily accessible from I-94 using Exit 23 (Pompeys Pillar Exit) or from Montana Highway 312.The Pillar overlooks the Yellowstone River about 25 miles east of Billings, Montana. Easily accessible from I-94 using Exit 23 (Pompeys Pillar Exit) or from Montana Highway 312.MT_Billings_FO@blm.govVisitor Center Daily: 9:00am - 6:00pm Trail: Open to public dawn to dusk45.75381-108.54705BillingsBureau of Land ManagementMT5001 Southgate Drive59101Pompeys Pillar National Monument is the only remaining on-site physical evidence of the Lewis and Clark Expedition. Distance: A series of trails and country roads that total over 2-3 miles Pompeys Pillar National Monument has a network of trails. Most are not handicapped accessible. Trails lead visitors around the base of the Pillar, through the riparian area long the Yellowstone River, up the Pillar via a boardwalk, and throughout the rest of the adjoining public lands via a network of dirt roads. USGS Map: 7.5 Minute Topographic Quadrangle Pompeys Pillar Township 3N; Range 30E; Section 210406-896-5235406-896-5000Visitor Center: May - SeptemberBillings59521|http://www.visitmt.com|Y#11|http://www.wintermt.com|#32|http://www.lewisandclark.state.mt.us|#94|http://indiannations.visitmt.com|Pompeys Pillar TrailCUSTERCusterB.L.M. TrailPompeys PillarMT3039 US Highway 31259064