Located in Harney, Oregon, Walls Lake Dam is a Federal-owned structure managed by the Bureau of Land Management. Completed in 2004, this gravity dam serves primarily as a water supply for the surrounding area, with a storage capacity of 773 acre-feet and a drainage area of 2.6 square miles. The dam stands at a hydraulic height of 11 feet and a structural height of 16 feet, with a length of 814 feet.

Despite being categorized as low hazard potential, Walls Lake Dam is assessed to be in fair condition, with a regular inspection frequency of 5 years. The dam lacks a spillway and is situated on a tributary to Walls Lake. With a risk assessment rating of 2 (high), the dam's risk management measures and emergency action plan status are currently unspecified. Walls Lake Dam presents an intriguing case study for water resource and climate enthusiasts, offering insights into the complexities of dam infrastructure and management in environmentally sensitive areas.