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Colvin Run Mill Historic Site

Colvin Run Mill Historic Site preserves a water-powered gristmill and associated buildings in Great Falls.

Colvin Run Mill Historic Site

The mill, general store and wooded grounds provide a focused introduction to local industry and everyday life in the nineteenth century.

Check current ticketed mill-tour times and separate store hours before arrival. The public grounds can be visited on a different schedule from staffed buildings and demonstrations. The photograph shows the historic mill exterior rather than proof that the machinery is operating during every visit.

Visitor details reviewed October 18, 2026. Check official visitor information for current access, admission, and operating arrangements. View on OpenStreetMap.

Image credit: Joe Ravi / Wikimedia Commons. Original source. CC BY-SA 3.0. Resized and converted to WebP; may be cropped for display.