{"nrhp_refnum":"12001144","name":"Monte Vista and Diamond Mountain Vineyard","other_names":["CONSTANT Diamond Mountain Vineyard, Rasmussen Ranch"],"category":"building","location":{"address":"2121 Diamond Mountain Rd.","address_restricted":false,"city":"Calistoga","county":"Napa County","state":"CA","lat":38.54881336950004,"lon":-122.58155773845778,"geom_source":"nps_gis"},"listed_date":"2013-01-09","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Agriculture"],"significance_levels":["local"],"summary":{"what_it_is":"A six-building farm complex and roughly twenty-six-acre mountainside vineyard at 2121 Diamond Mountain Road in Calistoga, Napa County, California. The farmhouse, carriage house and barn were built beginning in 1896 for vineyardist Rasmussen.","why_significant":"The property is significant as a surviving turn-of-the-twentieth-century mountain vineyard farm. Rasmussen established the third vineyard on Diamond Mountain, at its highest elevation, and drew on experience with noted viticulturist George Husmann. The farm buildings and vineyard layout retain their historic character and setting.","narrative":"Monte Vista is a farm complex and twenty-six-acre vineyard high on Diamond Mountain above Napa Valley, near Calistoga. Forest surrounds the vines and the cluster of buildings, which include a one-and-one-half-story wood farmhouse built in 1896, a carriage house, a 1909 fieldstone cold storage shed, a garage, a barn and a heavily altered cottage. All are vernacular in style. Rasmussen, a vineyard foreman who had worked under viticulturist George Husmann, bought the land and had John Bradbury build the farmhouse, carriage house and barn. He planted fruit trees and then grapevines, reaching twenty acres of vines by 1913, and hauled his grapes to local wineries for crushing. His vines were the third established on Diamond Mountain and grew at its highest elevation. The farmhouse, carriage house, shed, barn, garage and vineyard contribute to the property's historic character, and the site layout and forested setting remain much as they were in the early twentieth century.","period_of_significance":null,"architect_builder":"John Bradbury (builder of the farmhouse, carriage house and barn)","architectural_style":"Other: Vernacular","criteria":[],"status_note":"Complex described as in good condition overall; the cold storage shed is in fair condition with mortar cracks. The farmhouse and vineyard are still in domestic and agricultural use.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:29.726098-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/12001144.pdf"},"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123860054","wikipedia":"https://en.wikipedia.org/wiki/Monte_Vista_and_Diamond_Mountain_Vineyard","wikidata":"https://www.wikidata.org/wiki/Q85786173"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/napa-county/monte-vista-and-diamond-mountain-vineyard-12001144/"}