Lox is a federally owned dam located in Natrona, Wyoming, along the South Fork Cave Gulch river. Completed in 1966, Lox serves multiple purposes including fire protection, stock watering, and small fish pond creation. The earth dam stands at a height of 35 feet with a hydraulic height of 31 feet, providing a storage capacity of 67 acre-feet and a normal storage level of 40 acre-feet.

Despite its low hazard potential, Lox has been assessed to be in poor condition as of May 2018, with a moderate risk rating. The dam's spillway type is uncontrolled, with a width of 100 feet, capable of discharging up to 310 cubic feet per second. The dam is subject to state regulations, inspection, and enforcement, with the State of Wyoming having jurisdiction over its operation and maintenance.

Water resource and climate enthusiasts interested in Lox can appreciate its unique location in a picturesque setting while also acknowledging the need for ongoing maintenance and risk management measures to ensure the safety and functionality of this vital water infrastructure.