Rancho El Conejo

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Rancho El Conejo was a 48,572-acre (196.56 km2) Spanish land grant in California given in 1803 to Jose Polanco and Ygnacio Rodriguez that encompassed the area now known as the Conejo Valley in southeastern Ventura and northwestern Los Angeles Counties. El Conejo means "The Rabbit" in Spanish, and refers to the many rabbits common to the region[1] (the desert cottontail and brush rabbit species).[2] The east-west grant boundaries approximately went from the border of Westlake Village near Lindero Canyon Road in the east to the Conejo Grade (the top of the hill along the 101 Freeway looking down into Camarillo) in the west. The north-south borders extended from the top of the Simi Hills at the end of Moorpark Road in the north to Hidden Valley in the Santa Monica Mountains in the south.[3][4] The rancho is the site of the communities of Newbury Park, Thousand Oaks, and Westlake Village.[5]


Extant Rancho Las Virgenes and Rancho El Conejo boundary marker.

Former Santa Barbara Presidio soldiers Jose Polanco and Ygnacio Rodriquez were granted Rancho El Conejo in 1803. Polanco, eventually lost his land due to neglect. In 1822, influential Santa Barbara army officer José de la Guerra y Noriega was granted Polanco's claim by Spanish Governor Pablo Vicente de Solá.[6]

With the cession of California to the United States following the Mexican-American War, the 1848 Treaty of Guadalupe Hidalgo provided that the land grants would be honored. As required by the Land Act of 1851, a claim for Rancho El Conejo was filed with the Public Land Commission in 1852,[7] and the grant was patented to José de la Guerra y Noriega and María del Carmen de Rodríguez in 1873.[8]

The property stayed in the de la Guerra families and Rodriguez until the 1860s, when after drought and disease decimated local cattle, the two families began selling off their land. In 1872, H. W. Mills purchased one-half of the Conejo grant from the heirs of Captain Jose de la Guerra, which he called the Triunfo Ranch. Mills went bankrupt and Andrew D. Russell purchased his Triunfo Ranch in 1881.[9] In 1882, 2,200 acres (9 km2) of the Newbury tract were sold.[10] In 1910, Harold and Edwin Janss of the Janss Investment Company purchased about 10,000 acres (40 km2) of land of what is now Thousand Oaks from the heir of John Edwards,[11] who had purchased the land from the de la Guerra heirs.

Historic sites of the Rancho[edit]

  • De la Guerra built an adobe in Westlake that was later submerged by the Westlake dam.
  • De la Guerra Adobe Ruins (1860) are located at 4651 Tapo Canyon Road.

See also[edit]


  1. ^ Nelson, Frank (July 6, 2008). "Conejo Oaks: An animal oasis". Los Angeles Times. Retrieved 2009-06-14.
  2. ^ City of Thousand Oaks (July 2, 1996), Conservation of the Thousand Oaks General Plan, p. 51, archived from the original (PDF) on June 21, 2010, retrieved 2009-06-14
  3. ^ Diseño del Rancho El Conejo
  4. ^ Diseño del Rancho El Conejo
  5. ^ U.S. Geological Survey Geographic Names Information System: Rancho El Conejo
  6. ^ Ogden Hoffman, 1862, Reports of Land Cases Determined in the United States District Court for the Northern District of California, Numa Hubert, San Francisco
  7. ^ United States. District Court (California : Southern District) Land Case 107 SD
  8. ^ Report of the Surveyor General 1844 - 1886 Archived 2013-03-20 at the Wayback Machine
  9. ^ Howard Mills Archived 2007-09-02 at the Wayback Machine
  10. ^ Egbert Starr Newbury Archived 2008-11-22 at the Wayback Machine
  11. ^ John Edwards Archived 2007-02-22 at the Wayback Machine
  • Allen, Patricia, 1976, History of Rancho El Conejo, Ventura County Historical Society Quarterly, Spring; Vol. XXI, No. 3, p. 2-97.
  • Bidwell, Carol A., 1989, The Conejo Valley : old and new frontiers, Windsor Publications.
  • Russell, Joe., 1957, History of the Conejo Ranch, Ventura County Historical Society Quarterly, Vol. II, No. 2, p. 12-19.

Coordinates: 34°12′0″N 118°54′0″W / 34.20000°N 118.90000°W / 34.20000; -118.90000

External links[edit]