{"nrhp_refnum":"80001025","name":"Carroll-Richardson Grist Mill","other_names":[],"category":"building","location":{"address":"Mill St.","address_restricted":false,"city":"Cave Spring","county":"Floyd County","state":"GA","lat":34.10134549800006,"lon":-85.34084082499999,"geom_source":"nps_gis"},"listed_date":"1980-06-19","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Industry","Engineering","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A mid-19th-century two-story timber-frame grist mill on Mill Street in Cave Spring, Floyd County, Georgia, built around 1857 by Milton Haynes for Armstead Richardson and John Carroll.","why_significant":"The mill is argued to be significant for architecture and engineering as the only local example of a mid-19th-century waterpowered mill in the Cave Spring multiple-resource area. It is also significant for industry as the area's principal historic industry and a major regional mill, where grain was ground, lumber sawed and electricity generated. Its surviving waterwheel is described as unusual.","narrative":"Built around 1857 on Mill Street in Cave Spring, this two-story grist mill was erected shortly after Armstead Richardson and John M. Carroll formed a partnership to run a mill. Milton Haynes is named as builder. The structure has a heavy braced-timber frame set on masonry piers, weatherboard siding, a gable roof with seamed metal and a shed front porch. An early-20th-century mill race and an overshot waterwheel sit on the east side, along Mill Race Creek. Inside, large open floors still hold some equipment, though none of it works. Corn and grains were ground and lumber was sawed here, and by the early twentieth century the operation, known as the Cave Spring Light and Power Company, generated electricity for the town. The mill closed in 1950. It is considered the only local example of a mid-19th-century waterpowered mill in the area, and its surviving waterwheel is unusual, since most were replaced by turbines. It is now in poor condition and used for storage.","period_of_significance":null,"architect_builder":"Milton Haynes","architectural_style":null,"criteria":[],"status_note":"Described as in poor condition and used for storage; some mill equipment remains but is not operational. The mill closed in 1950.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:41.422339-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_GA/80001025.pdf"},"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/93205998","wikipedia":null,"wikidata":null},"indexable":true,"url":"https://nationalhistoricalregister.com/georgia/floyd-county/carroll-richardson-grist-mill-80001025/"}