Grinnell Mill Historic District
Why it's listed
Grinnell Mill and its surrounding complex sit in a forested valley on the Little Miami River near Yellow Springs, Ohio. The district includes a c. 1832 two-and-a-half-story mill on a limestone foundation, a 1,000-foot mill race, a dam, a miller's house from about 1830, the 1855-58 Grinnell House and a small family graveyard. The mill still holds its Leffel turbine, two millstones and many gears and pulleys. Brothers Andrew and Robert Moody sought permission to build a dam in 1811, and Frank Grinnell bought the mill in the 1860s. It ground grain, sawed lumber and processed agricultural lime until closing in 1937. In 1862 it sheltered freed slaves brought to Yellow Springs by Moncure Conway. The Grinnell family held it until 1948, when Antioch College acquired it for the Glen Helen preserve. The complex was listed as a rare, largely intact example of nineteenth-century milling and of the people connected with it.
Significance in brief: The district illustrates nineteenth-century milling along the Little Miami River. Grinnell Mill is the last of five mills once in the area and may be one of the oldest surviving mills in Ohio. The dam, race and mill show early milling technology, and the houses reflect the architecture and lifestyles of the mill's owners.
Machine-generated summary. This summary was generated by a language model from the official nomination document and has not been reviewed line by line by an editor. It may contain errors. Check the source document before relying on any detail. Source: nomination document (PDF) · National Archives catalog entry. NRHP reference 82001464, listed November 29, 1982. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence medium).
Key facts
| Address | 3536 Bryan Park Rd., Yellow Springs |
|---|---|
| County | Greene County |
| Listed | November 29, 1982 |
| Reference number | 82001464 |
| Resource type | District |
| Period of significance | 1800-1899 |
| Architectural style | Eclectic (Grinnell House); the mill is described as a simple early nineteenth-century Ohio mill form |
| Areas of significance | Industry, Architecture |
| Level of significance | Local |
| Status (as stated in the nomination) | Mill is in good condition with a two-bedroom apartment on part of the ground floor; the mill was vacant 1937-1948, and tenants have lived there since 1948. Grinnell House ice house is now an apartment. |
| Acreage | 28 |
| Coordinates | 39.78349, -83.87459 (NPS GIS) |
What listing means for this property
This is a historic district. Buildings within its boundary are either contributing (they add to the district's significance) or non-contributing. Owners of contributing income-producing buildings can claim the 20% federal rehabilitation tax credit; homeowners should look at state credits. National Register districts impose no design review by themselves; a local historic district ordinance, if one exists, does (the difference explained).
General information, not legal or tax advice. Rules change; confirm with your State Historic Preservation Office or a qualified adviser.
Sources and further reading
- National Park Service, National Register of Historic Places database (snapshot May 2026), reference 82001464.
- Nomination form (PDF, National Archives) — catalog entry
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.