{"nrhp_refnum":"93000391","name":"Las Flores Estancia","other_names":["CA-SDi-812 H","San Diego Museum of Man W-4755","Huisme","Rancho de"],"category":"site","location":{"address":"Jct. of Pulgas and Stuart Mesa Rds.","address_restricted":false,"city":"Camp Pendleton","county":"San Diego County","state":"CA","lat":33.29982241300007,"lon":-117.46155661799997,"geom_source":"nps_gis"},"listed_date":"1993-05-20","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Prehistoric","Historic - Aboriginal","Native American","Historic - Non-Aboriginal","Social History"],"significance_levels":["national","state"],"summary":{"what_it_is":"Archaeological site of the ruined adobe Las Flores estancia, a Mission Period compound about 25 meters square on a hill near the Pacific within Camp Pendleton, San Diego County, California, built about 1823 on a prehistoric Indian midden.","why_significant":"The nomination argues the site records thousands of years of occupation, from prehistoric and Luiseño use through Mission San Luis Rey's estancia, an Indian Pueblo and the Pico rancho. It is claimed significant at national and state levels for Native American Ethnic Heritage and Social History (Criterion A) and for prehistoric, historic aboriginal and non-aboriginal archaeology (Criterion D).","narrative":"Las Flores estancia is the ruin of an adobe compound built around 1823 on a hill about 3,000 feet from the Pacific, now inside Camp Pendleton. It sits on a prehistoric and Luiseño village midden. Under Mission San Luis Rey it served as a ranch outpost with a chapel, then became an Indian Pueblo during secularization, and was later absorbed into the Pico family's Rancho Santa Margarita y Las Flores. After its residents left it was used as corrals and stables and gradually crumbled. Today low adobe mounds outline roughly fifteen rooms around a central courtyard, with one wall segment still standing. Shovel tests found Tizon Brown Ware pottery, ground stone, shell, bone and fragments of fired roof tile. The site was nominated for what it shows about Native American heritage, social history and archaeology, spanning the prehistoric era through the Mission, Pueblo and early American periods. The protected compound interior is expected to hold well-preserved deposits.","period_of_significance":"Prehistoric (Milling Stone Horizon, about 7,000 B.P.) through A.D. 1880; listed phases include Late Prehistoric A.D. 100-1769, Spanish Mission 1769-1833, Indian Pueblo 1833-1854, Mexican/E. American 1854-1880","architect_builder":null,"architectural_style":"Colonial/Spanish Colonial","criteria":["A","D"],"status_note":"Ruin of low eroded adobe mounds with one standing wall segment protected by a small roof; the site is within a leased Boy Scout camp area and has been disturbed by rodents, plowing, a dirt road and landscaping.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:28.070139-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/93000391.pdf"},"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123860906","wikipedia":null,"wikidata":null},"indexable":true,"url":"https://nationalhistoricalregister.com/california/san-diego-county/las-flores-estancia-93000391/"}