Sat 10–10:45 am

Ranger-Led Tour at Peirce Mill

Peirce Mill, Rock Creek Park · Rock Creek Park · See listing · ★ 4.7 (378)

A ranger walks you through DC's last working 19th-century gristmill, gears and all.

45-minute ranger-led tour of Peirce Mill starts at 10 am on Oct 31; meet at 2401 Tilden St NW in Rock Creek Park. Check the NPS listing for exact cost, likely free.

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Updated Friday, October 30, 2026 · real listings, pulled from 130+ sources and reviewed by a person.

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