Trail 100 is part of the Humbug OHV area in Klamath National Forest. The trail branches off from road 46N24
and fizzles out about a mile and a half later. The trail connects 55101 (Trail 101)
and 55098 (Trail 98). The trail starts with a steep climb, levels out, then has a fun more technical section through a pine forest.
The trail surface is sandy compact soil with some duffy cover in sections. The vegetation is predominately manzanita with a pine forest at the top.
The OHV area has a network of trails designed for ATV and dirt bike use but is still open to the adventurous mountain biker. Be aware of other trail users, as they may not be looking for bikes - keep your ears open.