{"nrhp_refnum":"79000558","name":"Geyserville Union School","other_names":[],"category":"building","location":{"address":"Main St.","address_restricted":false,"city":"Geyserville","county":"Sonoma County","state":"CA","lat":38.70781288500007,"lon":-122.90737442599999,"geom_source":"nps_gis"},"listed_date":"1979-10-24","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Education","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A two-story poured reinforced concrete school building of about 10,400 square feet on Redwood Highway (Main Street) in Geyserville, Sonoma County, California, built in 1920-1921 from 1919 plans by architect Henry C. Smith.","why_significant":"It served as the educational, social and cultural center of Geyserville and the surrounding wine-growing countryside, and housed the first union high school district in Sonoma County. It was among the first reinforced poured concrete buildings in Sonoma County and the only one of its type in Geyserville. Its Mission Revival/Spanish Colonial Revival design broke with the local late Victorian wooden architecture.","narrative":"Geyserville Union School is a two-story building of poured reinforced concrete on Redwood Highway, completed in 1921 from plans drawn by San Francisco architect Henry C. Smith. It holds six classrooms, three offices and a double-height gymnasium/auditorium. Tiled roofs, arched windows, recessed entrances and stuccoed walls give it a Mission Revival and Spanish Colonial Revival character. It was the first poured concrete structure in Geyserville and one of the earliest of its kind in Sonoma County. The school grew out of the first union high school district in Sonoma County, formed in 1915, and replaced the one-room schoolhouse model. Beyond classes, the gymnasium hosted athletic games, community gatherings and University of California Extension lectures, including viticulture and farm management courses important to the local wine industry. The building also served as a polling place. At the time of listing it stood vacant, with only minor vandalism, and was slated for conversion to offices and shops.","period_of_significance":"1919-1921","architect_builder":"Henry C. Smith, Architect","architectural_style":"Mission Revival/Spanish Colonial Revival","criteria":[],"status_note":"Vacant at the time of nomination, in fair repair apart from minor vandalism such as broken windows and lack of paint; plans called for adaptive reuse as offices and specialty shops.","vacant_flag":true,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:32.038538-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/79000558.pdf"},"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123862066","wikipedia":"https://en.wikipedia.org/wiki/Geyserville_Union_School","wikidata":"https://www.wikidata.org/wiki/Q14682010"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/sonoma-county/geyserville-union-school-79000558/"}