On the other end of the difficulty spectrum, the Sweetgum Swamp Trail is surprisingly rugged, climbing up the steep sides of relict dunes and winding through a dense hardwood and pine forest.

THE FOREST EXPLORATION CENTER ISN’T WHERE YOU WOULD NORMALLY EXPECT TO FIND AN OLD HARDWOOD FOREST ... the scenery quickly goes from city life to a dense forest that spans about 60 acres.

Dartmouth scientists using LIDAR-equipped drones to peer through Michigan's dense forest canopy have made a shocking ...