From the Guidebook:
Chief Juan Antonio and his
band of Cahuilla Indians helped white settlers in the
San Bernardino area defend their property and livestock
against outlaws during the 1840s and 1850s. In late 1851,
Juan Antonio, his warriors and their families, settled
at nearby Saahatpa. During the winter of 1862-63, a smallpox
epidemic swept through Southern California killing many
Native Americans, including Juan Antonio. Cahuilla tradition
asserts that the U.S. Government sent Army blankets that
were contaminated with smallpox. After this disaster,
Saahatpa was abandoned.
Orignially registered August 17, 1860. Plaque placed by the State Department of Parks and Recreation in cooperation with Riverside County Historical Commission and Billy Holcomb Chapter of E Clampus Vitus, May 3, 1987.