McDonald Lakes, also known as Brown Lake or Little McDonald, is a state-owned water resource located in Otter Tail, Minnesota. This picturesque area is regulated by the Minnesota Department of Natural Resources and is used for seasonal dwellings. The dam at McDonald Lakes was completed in 1937 and stands at a height of 6 feet, with a structural height of 7 feet. The reservoir has a storage capacity of 28,287 acre-feet and covers a surface area of 561 acres.

With a low hazard potential and a satisfactory condition assessment, McDonald Lakes provides a tranquil environment for water and climate enthusiasts to explore. The reservoir is situated along the Dead River and has a drainage area of 6.99 square miles, making it an important water source for the region. Despite its small size, McDonald Lakes plays a vital role in the local ecosystem and offers opportunities for recreation and wildlife observation.

Overall, McDonald Lakes is a well-maintained and regulated water resource in Minnesota. Its serene surroundings and diverse wildlife make it a popular destination for outdoor enthusiasts. With its historical significance and functional design, this dam and reservoir serve as a valuable asset for both the community and the environment.