The Grindstone River, also known as Hinckley, is a state-owned water resource situated in Pine, Minnesota. This river is regulated by the Minnesota Department of Natural Resources, with permitting, inspection, and enforcement processes in place to ensure its proper management. The primary purpose of the Grindstone River is for recreation, offering opportunities for outdoor activities and enjoyment for enthusiasts and nature lovers.

The Grindstone River features a gravity dam of 18 feet in height, providing a storage capacity of 428 acre-feet and a maximum discharge of 1500 cubic feet per second. Despite its significant hazard potential and poor condition assessment, the river continues to attract visitors for its scenic beauty and recreational opportunities. With a moderate risk level associated with the dam, there is a need for ongoing risk management measures to maintain the safety and integrity of the structure.

Overall, the Grindstone River serves as a valuable water resource in Minnesota, offering both recreational and environmental benefits. As climate and water resource enthusiasts explore this area, it is important to be aware of the regulatory measures in place and the potential risks associated with the dam structure. By understanding and respecting these factors, visitors can continue to enjoy the beauty and diversity that the Grindstone River has to offer.