{"nrhp_refnum":"77000351","name":"Walters Ranch","other_names":["Griffin Vineyard","Sweetwater Ranch"],"category":"district","location":{"address":"6 mi. S of Healdsburg at 6050 Westside Rd.","address_restricted":false,"city":"Healdsburg","county":"Sonoma County","state":"CA","lat":38.53776431850005,"lon":-122.86915495991838,"geom_source":"nps_gis"},"listed_date":"1977-10-07","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Agriculture","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A 84-acre agricultural district on two parcels along Westside Road, about six miles southwest of Healdsburg, Sonoma County, California. It holds seven buildings, including an 1905 stone hop kiln, an 1888 sheep barn and a moved Italianate house, on a ranch first developed by Sol Walters.","why_significant":"The hop kiln is described as the most significant remaining stone hop kiln in the North Coast region (Sonoma and Mendocino Counties) and was built by stonemason Angelo \"Skinny\" Sodini. Together with the sheep barn, the Italianate house and the other outbuildings, it gives the impression of a turn-of-the-century working ranch. The kiln was designated California Historical Landmark No. 893 in 1976.","narrative":"Six miles southwest of Healdsburg, this 84-acre ranch on Westside Road preserves the look of turn-of-the-century farming in Sonoma County. Seven buildings stand on two parcels, led by a stone hop kiln built in 1905 by Angelo \"Skinny\" Sodini, a sheep barn dating to 1888, and a two-story Italianate house moved from Fulton in 1973 to save it from demolition. Smaller structures include a former lambing shed, a machine shop barn, a former wash house and a Kansas-style farmhouse. The ranch grew from land Sol Walters bought and used for sheep and vines in the 1880s. The kiln is described as the most significant surviving stone hop kiln in Sonoma and Mendocino Counties, and it joins a stone cooling house to the drying kilns, a feature the nomination calls uncommon. Sheep still graze the land, and the surrounding working setting supports its designation as a district.","period_of_significance":"1900-","architect_builder":"Angelo \"Skinny\" Sodini (hop kiln, 1905)","architectural_style":"Italianate (residence); Kansas-style farmhouse; standard-design hop kiln","criteria":[],"status_note":"Occupied and in agricultural use; the kiln is structurally sound, the house is in excellent condition, and the sheep barn is in fair condition and still used for livestock and storage. The kiln has been bonded as a small winery.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:31.456831-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/77000351.pdf"},"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123862148","wikipedia":null,"wikidata":null},"indexable":true,"url":"https://nationalhistoricalregister.com/california/sonoma-county/walters-ranch-77000351/"}