Lower Rock Lake is a private recreational lake located in Sedgwick, Kansas, near the city of Wichita. The lake is fed by Gypsum Creek and has a surface area of 4.2 acres with a maximum storage capacity of 68.38 acre-feet. The dam that forms the lake is a buttress type with a height of 12 feet and a length of 1050 feet.

Although the dam's hazard potential is listed as undetermined and its condition is not rated, Lower Rock Lake provides a serene environment for water resource and climate enthusiasts to enjoy various recreational activities. Even though the dam does not fall under state regulation, its presence creates a tranquil oasis for fishing, boating, and wildlife watching. The lake's remote location and picturesque surroundings make it a hidden gem for those seeking a peaceful escape from the hustle and bustle of city life.