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Yellowstone County, Montana Landmarks

The landmarks listed below are located in Yellowstone County, Montana.

Pompeys Pillar National Monument

Pompeys Pillar National Monument

, Yellowstone County, Montana, 59088
Pompeys Pillar National Monument is a rock formation. The pillar itself stands 150 feet (45 m) above the Yellowstone River and consists of sandstone from the late Cretaceous Hell Creek Formation, 75 - 66 million years ago.

Top 1 Most Popular Yellowstone County Landmarks

  1. Pompeys Pillar National Monument

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