August 22, 2015
Manly Gulch is a very nice single track that winds through a dense forest. The trail gets pretty thin in some places with steep edges but is a great ride nonetheless.
As another reviewer indicated, you can purchase a trail map of the area at Catch a Canoe ($8) on the way into Mendocino (heading North). The map is invaluable (especially since satellite reception is limited) and contains detailed trail mappings of the entire area (which is the real prize). The owner/creator is considering the addition of 3D effects on the back side so that you'll be able to see the contours - which would be very helpful.
We started in the Mendocino Woodlands campground and headed up Boiler (the park ranger was helpful getting us to that location) then stayed on 720 for a bit (since Boiler was quite a climb), then did Gas Cap and Confusion Hill (these were quite fun and we'll consider repeating them next time by heading back on 720 to the start points) on our way up to Forest History Trailhead (via 408) where we caught Manly Gulch.
Once down Manly Gluch we completed the roughly 12 mile loop (and est. 2500' elevation) taking Staircase to Eagle's Roost, to Old Jeep Trail (another good climb) to Ridge, then down Big Tree trail back to the parking area.
We'll definitely be returning to Mendocino (with the map)!