Editing Rock Creek Park (section)

=== Peirce Mill ===
{{main|Peirce Mill}}
[[File:Pierce Mill.JPG|thumb|270px|right|Peirce Mill]]

[[Peirce Mill]] is a water-powered [[grist mill]] in Rock Creek Park. There were at least eight mills along Rock Creek within what is now Washington, D.C., and many more farther upstream in [[Montgomery County, Maryland]]. Of those eight, only Peirce Mill is still standing.

It was built in the 1820s by Isaac Peirce, along with a house, barn, and other buildings. It was later owned by a son, Joshua Peirce, and a nephew Peirce Shoemaker. It became part of Rock Creek Park in 1892.<ref name="adminhist2e">NPS (2004). [http://www.nps.gov/history/history/online_books/rocr/adhi/adhi2e.htm "Under Military Rule: Peirce Mill."] ''Rock Creek Park: An Administrative History.''</ref>

The mill was listed on the National Register in 1969 as Peirce Mill.<ref name="nris"/> It was repaired and re-opened October 15, 2011.

The Peirce Carriage Barn, adjacent to the mill, is the National Park Service point of contact. The barn was part of the Peirce estate built in 1810 and used as a [[horse tack|tack]] room and carriage barn. The barn is now a mini-museum containing information on the milling process, the Peirce family estate and other mills along the Rock Creek Valley.