South Mountain Switchbacks in Millburn, NJ -  We use a 1.2 mi loop for our "Switchback" route. The first 1/2 mi climbs 300 ft up the yellow-blazed Lenape Trail. When you get to the top, you'll turn left on the pavement and follow that for about 0.20 mi to the flagpole and then descend 300 ft down the switchbacks to return to the picnic groves. We do not recommend leaving gear at the picnic grove, as this is a high-traffic area with hikers. You can easily access your car in between loops if needed. The 1.2 mi loop has a total of 300 ft of elevation gain. With the exception of the 0.2 mi pavement stretch, the rest of the loop is technical with rocks and roots; lots of hiking! We recommend grippy trail shoes, and poles could be helpful if you like using them. You can do the loop in either direction! Download the gpx file HERE. direction The course will not be marked, but there will be Sassquaders there who will stay with you for a loop until you know where you're going; many folks end up sticking together after that, anyway.