The original adobe structure was demolished in 1900. The city of Los Angeles provided funds for the purchase of the property in 1923, and a Mission Revival and Spanish Colonial Revival style replica "adobe" ranch house was built by the city following an effort led by Irene T. Lindsay, then president of the San Fernando Valley Historical Society, and dedicated on November 2, 1950. It is now a park and interpretive center managed by the City of Los Angeles's Department of Recreation and Parks in partnership with the Campo de Cahuenga Historical Memorial Association. Campo de Cahuenga is registered on the National Register of Historic Places, as California Historical Landmark No. 151, and as Los Angeles Historic-Cultural Monument No. 29.
The foundations of the original adobe were unearthed beneath Lankershim Boulevard during construction of the Metro B Line subway. The parts of the foundations within the park are preserved as an exhibit, and the "footprint" of the foundations under the street and sidewalk is marked by decorative pavement.
The building is used by various organizations for special programs and regular meetings, and it is open with a docent on the first Saturday of each month, from 12:00 PM to 4:00 PM.
NO. 151 CAMPO DE CAHUENGA - 'Here was made the Treaty of Cahuenga by General Andrés Pico, commanding forces for Mexico, and Lieutenant-Colonel J. C. Frémont, U.S. Army, for the United States. By this treaty, agreed upon January 13th, 1847, the United States acquired California - finally secured to us by the treaty of Guadalupe Hidalgo, made February 2nd, 1848.' This legend was written February 9, 1898 by Mrs. Jessie Benton Frémont.
Fort Tejon – Located 15 miles southwest of Sink of Tejon Station, north of and below the summit of Tejon Pass.
Reed's Station – Located 8 miles southeast of Fort Tejon, near, to the south of the summit of the Tejon Pass.
French John's Station – Located 14 miles east southeast of Reeds Station, in the vicinity of the mouth of Cow Springs Creek Canyon.
Mud Spring, a later station operating in 1860, 14 miles east from French Johns and 13 miles north from Clayton's Station (formerly Widow Smith's Station). [1]