Burro Flats site

The Chumash-style "main panel" and the surrounding 25-acres were listed on the National Register of Historic Places in 1976, with a boundary decrease in 2020.

The Burro Flats painted cave and the rest of the former Santa Susana Field Laboratory are not accessible to the public.

Tribal leaders expressed concern about damage that could result from vandals or weather and asked NASA to enclose the cave in glass, but this was never done, in order to keep the site and surrounding area as pristine as possible.

Boeing transferred an easement to the North American Land Trust which requires their property to remain as open space and protected from residential and agricultural development by future owners.

[5] NASA has declared its part of the former Field Laboratory to be "excess government property" and will divest its holding, following area clean-up.

Brewer's party explored a large area in a short amount of time, and he does not specifically mention any native "rock art."

The first non-native person known to have visited the site was Walter Brinkop, who was a member of the Pierre Agoure family, for whom the Agoura Hills area is named.

Brinkop made several simple field sketches of the cave art in 1914, and he presented his drawings to Dr. Hector Alliott, the then Director of the Southwest Indian Museum, in Los Angeles.

In 1939 the Burro Flats area was acquired by the Henry Silvernale and William Hall families, who named their property "Sky Valley Ranch."

Of the Burro Flats cave art, Rozaire noted that they are most like "those in the west-central coast ranges of Santa Barbara, Kern, Los Angeles, and Ventura counties."

Fenenga said that, "Because of its magnitude, the complex of features which are integral to it, the dramatic physiographic location, the unmodified natural landscape, and the fine state of preservation [it is] one of the major examples of aboriginal American art, one of the most important archaeological sites in America [i.e. in the United States] and it certainly meets the criteria for inclusion in the National Register of Historic Places."

[6][7] The work by the ASASC, Rozaire, Grant, and Fenenga, focused on and described the Burro Flats cave art and the archaeological components of the site.

The research begun in 1979, by the archaeologist John Romani, Edwin Krupp (the Director of the Griffith Observatory), and others, showed that the site (complex) was utilized to predict and observe both the winter and summer solstices.