The Underdown is a gem of a trail system that has extensively changed from a handful of years ago. If you like technical singletrack with very little doubletrack networking, this is for you. The trail head sits not far from the town of Merrill, nearest to Lincoln Hills correctional facility. Straight out of the parking lot into the woods you hit singletrack that combines climbing with equal length downhill shots. For some 1x1 riders you might find yourself walking most of the climbs if youâre not ready for them. Be prepared for some loose rocks, off camber runs with switchbacks, wet root sections and sweet downhills. Iâve found that the knobbier the tire, the better. Overall the singletrack trail system is perfectly maintained (even in the fall) and is marked very well. <br>For more trail info check out: http://www.fattireguides.com/trails/yourTrailDetail.cfm?tid=59
45°19'47.39"N, 89°35'7.46"W
http://www.singletracks.com/item.php?c=1&i=2981