Yellowstone County, Montana, USA
County or equivalent
Location overview
Yellowstone County is in south-central Montana, where the Yellowstone River crosses a landscape of plains and rugged terrain. Billings is the county seat and a regional center for trade, transportation, energy and health care. Agriculture, ranching and industry have shaped the county’s development. Established in 1883, it takes its name from the river. Pompeys Pillar is a prominent historical landmark in the county.