Located in the picturesque Grant County, Oregon, Olive Lake is a stunning reservoir created by an earth dam in 1907 for hydroelectric and recreational purposes. Managed by the USDA Forest Service, this Federal-owned oasis offers a tranquil escape with a surface area of 320 acres and a maximum storage capacity of 3,300 acre-feet. Situated along Lake Creek in the city of Dale, Olive Lake boasts a controlled spillway and a valve outlet gate, ensuring the safety and regulation of water flow.

With a dam height of 39 feet and a structural height of 39 feet, Olive Lake stands as a conservation marvel in the heart of nature. The reservoir's high hazard potential is met with a stringent inspection frequency of every 5 years, demonstrating a commitment to safety and risk management. Despite the lack of a formal condition assessment, Olive Lake's condition remains stable and well-maintained, providing a haven for water resource and climate enthusiasts to explore and appreciate the beauty of this Federal-owned gem in Oregon's wilderness.