Harper Falls is on the North Branch of the Grasse River. The hike into this area is almost as beautiful as the falls itself. From the intersection to the trail parking is ½ mile on the Donnerville Road which is dirt and gravel and is shared with ATV users, so please use caution as there are several blind hills and turns. Starting from Donnerville Road and walking up the river toward Harper Falls offers a relaxing trek, with a couple of hills and small creek crossings.
Once at the falls do not only observe them from a distance, take a walk to the top for that "up close feeling". While walking up you may notice the path has stone walls along the edge. These are the remnants of an old sawmill. This mill was made during the time the town of Donnerville was active and running.
There is an alternate hike as well for Harper Falls, which is from the opposite end of Donnerville Road, which intersects with County Route 24. The drive in is about 1.75 miles. This hike is about 2 miles to the falls. There is also the remnants of an old cemetery on this end of Donnerville Road.