2024 Map of Pompeys Pillar

About this map

Pompeys Pillar National Monument overlooks the south bank of the Yellowstone River, marking a storied point of navigation and history in eastern Yellowstone County. The settlement of Pompeys Pillar is positioned along the northern transport corridor where Interstate 94 and Old Hwy 312 parallel the river's course. This area is defined by a sophisticated early 20th-century irrigation network, featuring the Huntley Main Canal and the Reservoir Line Canal, which divert water to support the valley's agricultural economy. Further south, the landscape shifts from the river valley into the broken terrain of the high plains, dissected by seasonal drainages like Fly Creek, Lost Boy Creek, and Smith Coulee. Local roads such as Sherrod Ln and Colton Rd provide access to the farms and ranches that span the county line into Big Horn County.