Details about Spahn Ranch
Spahn Ranch is in Chatsworth, Los Angeles.
Sources: SRC-2524 · SRC-2525 · SRC-7073
Spahn Ranch is connected to Bonanza (tv, 1959-1973).
Sources: SRC-2526 · SRC-2527 · SRC-4166
The recorded construction date for Spahn Ranch is 1947.
Sources: SRC-2527 · SRC-2525 · SRC-6787
Spahn Ranch is connected to Zorro (tv, 1957).
Spahn Ranch is connected to The Lone Ranger (tv, 1949).
Spahn Ranch is a ranch in Los Angeles, California, and a filming location for Bonanza (1959-1973), Zorro (1957) and The Lone Ranger (1949). Built in 1947.
Location: Chatsworth, Los Angeles, California, United States
Verified facts
- Located in Chatsworth, Los Angeles
confidence 80/100 · 5 recorded source groups · SRC-2524, SRC-2525, SRC-7073, SRC-5027, SRC-9090 - Appeared in Bonanza (tv, 1959-1973)
confidence 70/100 · 3 recorded source groups · SRC-2526, SRC-2527, SRC-4166 - Built in 1947
confidence 80/100 · 6 recorded source groups · SRC-2527, SRC-2525, SRC-6787, SRC-6788, SRC-9091, SRC-9634 - 55 acres floor_area_sqft
confidence 80/100 · 6 recorded source groups · SRC-2525, SRC-5027, SRC-6787, SRC-7593, SRC-9091, SRC-9676 - Appeared in Zorro (tv, 1957)
confidence 70/100 · 2 recorded source groups · SRC-2527, SRC-10526 - Appeared in The Lone Ranger (tv, 1949)
confidence 70/100 · 2 recorded source groups · SRC-2527, SRC-10526 - Historic designation: Santa Susana Pass State Historic Park (site now part of)
confidence 75/100 · 3 recorded source groups · SRC-2525, SRC-13035, SRC-13702
Evidence & sources
- SRC-10526 — https://simple.wikipedia.org/wiki/Spahn_Ranch (Tier 1, reference; retrieved June 2026)
- SRC-13035 — https://en.wikipedia.org/wiki/Santa_Susana_Pass_State_Historic_Park (Tier 1, reference; retrieved June 2026)
- SRC-13702 — California State Parks — Santa Susana Pass State Historic Park brochure (parks.ca.gov) (Tier 1, reference; retrieved July 2026)
- SRC-2524 — Foundation for the Preservation of the Santa Susana Mountains — Santa Susana Pass State Historic Park history (Tier 2, institutional_page; retrieved June 2026)
- SRC-2525 — Wikipedia — Spahn Ranch (Tier 3, encyclopedia; retrieved June 2026)
- SRC-2526 — HISTORY (A&E Television Networks) — How Spahn Ranch Became a Headquarters for the Manson Family Cult (Tier 2, reported_journalism; retrieved June 2026)
- SRC-2527 — Den of Geek — The Movies That Were Made at Spahn Ranch (Tony Sokol) (Tier 2, reported_journalism; retrieved June 2026)
- SRC-4166 — slashfilm.com (Tier 2, journalism; retrieved June 2026)
- SRC-5027 — Wide Open Country — Spahn Ranch (Tier 3, feature; retrieved June 2026)
- SRC-6787 — All That's Interesting — Spahn Ranch, From Movie Set To Manson Family Headquarters (Tier 3, magazine_article; retrieved June 2026)
- SRC-6788 — Beware the Blog — The Spahn Movie Ranch, Sharon Tate, the LaBianca's and Helter Skelter (Tier 3, blog_article; retrieved June 2026)
- SRC-7073 — Santa Susana Pass State Historic Park Hike – Modern Hiker (Tier 3, outdoor-guide; retrieved June 2026)
- SRC-7593 — IndieWire — Spahn Ranch set piece (Tier 2, article; retrieved June 2026)
- SRC-9090 — California State Parks — Santa Susana Pass State Historic Park (official park page; park contains the former Spahn Movie Ranch) (Tier 1, official_archive; retrieved June 2026)
- SRC-9091 — Chatsworth Historical Society — "Spahn Ranch History" by Ann Vincent (Feb 2023) (Tier 2, local_history_archive; retrieved June 2026)
- SRC-9634 — Curbed Los Angeles — "The Story of the Abandoned Movie Ranch Where the Manson Family Launched Helter Skelter" by Hadley Hall Meares (Oct 22, 2014) (Tier 2, reported_journalism; retrieved June 2026)
- SRC-9676 — The Cinemaholic — "Spahn Ranch and Barker Ranch: Where Were They Located? Do They Still Exist?" (Tier 2, reported_journalism; retrieved June 2026)
How we verify
The entries above show the sources and confidence scores recorded in our fact ledger.
Source tiers are internal classifications, not guarantees of accuracy or independence.
Several sources may repeat the same underlying account; a source count alone does not establish independent corroboration. We show the
street address only for non-residential public landmarks (museums, commercial and civic buildings,
publicly documented filming-location sites); the exact addresses of private residences and any
personal information are structurally barred from publication. Last reviewed June 2026.