Arthur Mitteldorf, an inventor and former president and chief executive of Spex Industries[3] and his wife Harriet searched for property containing a pristine stand of Redwood trees and donated the funds to purchase the property to the trust in 1990.[4] Mitteldorf conserves the largest Redwood trees in Monterey County. It also protects madrone, oak woodland, coastal chaparral, and grassland habitats. Williams Canyon Road through the preserve provides emergency access first responders. The road is an essential road for the California Department of Forestry Palo Corona Fuels Reduction Project. The trust began developing infrastructure for a nature camp and research program when the Soberanes Fire destroyed the barn and burned much of the habitat.[5][6] Public access is allowed by reservation only.[4]
^"BIOS Viewer by CDFW". apps.wildlife.ca.gov. California Department of Fish and Wildlife. Archived from the original on 2020-10-20. Retrieved 14 February 2022.
^ ab"Mitteldorf Preserve". bigsurlandtrust.org. Carmel, California: Big Sur Land Trust. Archived from the original on 13 April 2020. Retrieved 14 February 2022.