[2] Indigenous peoples in the area may have used the hot mineral springs before European and American settlers arrived.

[5] In 1871 J. W. Wilcox visited the area and soaked in the springs to rehabilitate from an injury he received in the Mexican-American War.

In 1881 a Mr. Wilcoxen purchased the springs from Gardener and used the site as a private home for the convalescence of his grandson, Arnold Carver.

The following year a new hotel, cabins, a bathhouse, horse stables, and camping area was built by A. W. Blumberg.

During the time the Robertson's ran the resort, the property was sold to the Ventura County Flood Control District in 1946.

[6] In 2017, the Thomas wildfire devastated nearly 300,000 acres in the area, including burning the hot springs structures.

[8] The mineral spring water is high in sulfur, and the associated "rotten egg" smell is due to the presence of hydrogen sulfide gas.

[4] Fountain of Life and Mother Eve were warm springs that yielded a flow of about 1 U.S. gallon (3.8 L; 0.83 imp gal) per minute.