Lake Valley Twp 34 is a privately owned dam located in White Rock, South Dakota, within the Traverse County of Minnesota. This rockfill dam serves multiple purposes, including fire protection, stock watering, and creating a small fish pond. With a height of 15.4 feet and a length of 230 feet, the dam has a storage capacity of 71.5 acre-feet and covers a surface area of 4.9 acres.

Managed by the Minnesota Department of Natural Resources, Lake Valley Twp 34 is regulated, permitted, inspected, and enforced to ensure its safety and compliance with state regulations. Despite its low hazard potential, the dam's condition assessment is currently not rated, and its emergency action plan status and risk management measures are unspecified. The last inspection was conducted in August 2019, with an inspection frequency of every 8 years.

Located along the Mustinka River, Lake Valley Twp 34 plays a crucial role in water resource management in the region. As a key structure in the area, it is essential for maintaining water supply, supporting wildlife habitat, and protecting against fire hazards. With its strategic location and multiple functions, this dam serves as a valuable asset for both the local community and the surrounding ecosystem.