Rancho Camulos
Also known as: Camulos Ranch; Del Valle Ranch; Camulos
Why it's listed
Rancho Camulos is an 1,800-acre citrus ranch in the Santa Clara River Valley near Piru, Ventura County. Its headquarters is anchored by the Ygnacio del Valle Adobe, begun around 1853 and expanded in phases into a U-shaped plan by the early twentieth century. Nearby are a brick winery built in 1867, a small wooden chapel, a bell structure, a brick fountain, and later Craftsman and Spanish Colonial Revival buildings. Across the highway stand railroad-related houses from 1887 and farm labor cottages from about 1916. The ranch is significant for the Del Valle family's agricultural and winemaking history and for its association with Helen Hunt Jackson's novel Ramona. After the book appeared in 1884 and the Southern Pacific arrived in 1887, visitors came to see the supposed home of the heroine, and the ranch was photographed, painted, and filmed in 1910. Its plan, setting, and working citrus landscape remain largely intact.
Significance in brief: The ranch is tied to the Del Valle family's rancho and agricultural history, including its wine and citrus production. It is also strongly linked to Helen Hunt Jackson's novel Ramona, which made it a tourist destination after the railroad arrived in 1887. It retains a largely intact citrus landscape and historic building plan.
Machine-generated summary. This summary was generated by a language model from the official nomination document and has not been reviewed line by line by an editor. It may contain errors. Check the source document before relying on any detail. Source: nomination document (PDF) · National Archives catalog entry. NRHP reference 96001137, listed November 1, 1996. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence medium).
Key facts
| Address | 5164 E. Telegraph Rd., Piru |
|---|---|
| County | Ventura County |
| Listed | November 1, 1996 |
| Reference number | 96001137 |
| Resource type | District |
| Period of significance | 1853-1941 |
| Architect / builder | Ygnacio del Valle family (adobe); August Rubel (schoolhouse, c. 1930); Southern Pacific Railway (section house, 1887) |
| Architectural style | Spanish Colonial; Mission/Spanish Colonial Revival; Bungalow/Craftsman |
| Areas of significance | Exploration/Settlement, Social History, Agriculture, Architecture |
| Level of significance | National |
| National Historic Landmark | Yes, designated February 16, 2000 |
| Status (as stated in the nomination) | Still operated as an active citrus ranch; the adobe shows ongoing repair, and a January 1994 earthquake caused damage, including to a water tower that was demolished. |
| Acreage | 40 |
| Coordinates | 34.40502, -118.75663 (NPS GIS) |
What listing means for this property
This is a historic district. Buildings within its boundary are either contributing (they add to the district's significance) or non-contributing. Owners of contributing income-producing buildings can claim the 20% federal rehabilitation tax credit; homeowners should look at state credits. National Register districts impose no design review by themselves; a local historic district ordinance, if one exists, does (the difference explained).
General information, not legal or tax advice. Rules change; confirm with your State Historic Preservation Office or a qualified adviser.
Sources and further reading
- National Park Service, National Register of Historic Places database (snapshot May 2026), reference 96001137.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q7290871
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.