Parfrey's Glen, located within Devil's Lake State Park, is a Wisconsin Department of Natural Resources-designated State Natural Area. The glen is a deep gorge cut through the sandstone of the south flank of the Baraboo Hills. It was the first State Natural Area to be designated in Wisconsin. The valley was named for Robert Parfrey.Location and accessParfrey's Glen is located approximately 5 miles north of Merrimac, Wisconsin. Though within the boundaries of Devil's Lake State Park, it cannot be accessed by vehicle from the rest of the park. A trail leads north into the natural area. The Ice Age Trail also passes through the site. However, heavy rainstorms in 2010 destroyed the boardwalk that made up the last part of the trail, which leads to a small waterfall. Visitors are advised not to travel down that part of the trail. As of September 6, 2015 it has yet to be repaired. As of Sept 3, 2017 still not repaired and lots of damage is being done to the streambed area.
