The Udell Hills are a landform east of Manistee, MI that is home to the Big M Trails. This model is 8.8 km (5.5 mi) E-W and 6.9 km (4.3 mi) N-S with a vertical exaggeration of 20X. The animated path is from the 2018 Lumberjack 100 mountain bike race (not mine) and shows off many of the area singletrack trails.