Grindstone - Hinckley Dam to Kettle River/Hwy.48 (8.4 miles) (MN)
Approximate - nearest available gauge. Use as general reference only.
The gradient above this point has been ~10 FPM. From here to the confluence with the Kettle River it increases to ~23 FPM.
Those seeking a shorter trip, with the best gradient, may wish to start their trip here.