Category:Pompeys Pillar National Monument

English: Pompeys Pillar National Monument — a rock formation in Yellowstone County, south central Montana.
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This is a category about a place or building that is listed on the National Register of Historic Places in the United States of America. Its reference number is 66000440
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Media in category "Pompeys Pillar National Monument"

The following 48 files are in this category, out of 48 total.