Ray Soule Reservoir, located in Siskiyou County, California, is a private-owned earth dam that was completed in 1953 and serves primarily for water supply purposes, including irrigation. The reservoir has a height of 28 feet and a maximum storage capacity of 132 acre-feet. Its location along the Tr L Shasta River makes it a vital resource for the surrounding area, providing a surface area of 13 acres for water storage.

Managed by the California Department of Water Resources and regulated by the Safety of Dams division, Ray Soule Reservoir has undergone regular inspections with a satisfactory condition assessment as of September 2017. Despite its significant hazard potential, the reservoir has maintained a safe status and is in compliance with state regulations for inspection, permitting, and enforcement. The last inspection in November 2020 ensured that the dam continues to meet safety standards while providing essential water resources to the community.

As a key component of the water supply infrastructure in the region, Ray Soule Reservoir plays a crucial role in ensuring water availability for agricultural and domestic use. Its strategic location and reliable storage capacity make it a valuable asset for managing water resources in Siskiyou County, contributing to the overall resilience of the area's water supply system. With a history dating back to the 1950s, the reservoir continues to be a vital resource for sustaining the local ecosystem and supporting the community's water needs.