Buckhorn is a privately owned dam located in Lassen, California, specifically in the city of Horne Ranch. Built in 1904, Buckhorn serves the primary purpose of water supply, supporting irrigation and general water needs in the area. The dam stands at a height of 35 feet and has a hydraulic height of 27 feet, impounding Buckhorn Creek to create a storage capacity of 2000 acre-feet.

Managed by the California Department of Water Resources (DWR) under the Safety of Dams program, Buckhorn is regulated, permitted, inspected, and enforced by the state authorities to ensure its structural integrity and safety. The dam has a low hazard potential and has been assessed to be in satisfactory condition as of September 2017. Despite its age, Buckhorn continues to provide essential water resources for the surrounding community, contributing to the overall water management efforts in the region.

With a drainage area of 18.7 square miles and a surface area of 300 acres, Buckhorn plays a vital role in harnessing and storing water for agricultural and domestic use. Its historical significance as a key water infrastructure in the area, combined with its regulatory compliance and maintenance record, makes Buckhorn a critical asset for water resource and climate enthusiasts interested in sustainable water management practices and the resilience of water supply systems in California.