Royal Reservoir, located in Redstone Township, Fayette County, Pennsylvania, is a privately owned earth dam that was completed in 1908 for recreational purposes. The reservoir has a dam height of 32 feet and a length of 450 feet, with a maximum storage capacity of 239 acre-feet and a normal storage of 82 acre-feet. With a surface area of 8 acres and a drainage area of 1.6 square miles, Royal Reservoir is a popular spot for outdoor activities such as fishing, boating, and picnicking.

Managed by the Pennsylvania Department of Environmental Protection, Royal Reservoir is state regulated, permitted, inspected, and enforced to ensure safety and compliance with environmental standards. The dam's hazard potential is classified as significant, although its condition assessment is currently not rated. The last inspection took place in December 2017, with a frequency of every two years. While the Emergency Action Plan status and risk assessment details are not specified, Royal Reservoir remains a key recreational resource in the region, attracting water resource and climate enthusiasts alike.

Overall, Royal Reservoir serves as a vital water resource for the community, offering both recreational opportunities and environmental benefits. Its picturesque location along Rowes Run, with support from local and state regulatory agencies, ensures the maintenance of the reservoir's safety and integrity. For those passionate about water management and climate-related issues, Royal Reservoir stands as a noteworthy example of sustainable water use and conservation efforts in Pennsylvania.