Mcmurry No. 4 is a private fish and wildlife pond located in Casper Country Club, Wyoming, along the Elkhorn Creek. Constructed in 2014 by designer Jack Morey, this earth dam stands at a height of 64 feet and has a hydraulic height of 59 feet, with a maximum storage capacity of 468 acre-feet. The dam serves multiple purposes including fire protection, stock watering, and recreation, and has a surface area of 20.8 acres.

With a drainage area of 165 square miles and a maximum discharge of 241 cubic feet per second, Mcmurry No. 4 has an uncontrolled spillway with a width of 20 feet. Despite being classified as having a high hazard potential, the dam's condition assessment in 2019 was deemed satisfactory. Regular inspections are conducted every 5 years, with the last inspection taking place in August 2019. The overall risk assessment for the dam is moderate, with no specific risk management measures outlined in the data.

As a vital water resource for the local ecosystem and community, Mcmurry No. 4 plays a crucial role in supporting fish and wildlife habitats while providing recreational opportunities for residents. With its strategic location and design, this dam represents a significant asset in water management and conservation efforts in Natrona County, Wyoming.