Fern Dell Gorge is located within the Mirror Lake State Park. (So you'll need a park sticker). I visited the narrow mile long gorge on an early March morning after a fresh snowfall. There were numerous ice falls. The gorge meets up with Mirror Lake. A maintained trail is available on the top left of the gorge that provides some amazing scenery. A small parking lot is located on Fern Dell Rd, between the Mirror Lake State Park and South Rd.