FR 5661, also "Eight Mile Road", is a gravel forest road that when taken by itself is a rolling, 16 mile out-and-back with numerous old logging roads (most unsigned) shooting off either side. There are sweeping views of distant ridges located along the south side of the road.
The gradient is fairly mellow along 5661, with only a few sections requiring moderate effort.
All of the signed, closed logging road offshoots running off of T5661 are pretty similar. Trail surface not full established, so expect to ride over some grass. There are also tons of other unmarked logging roads off of each of the trails listed below, so plenty of room to explore.
T5661C, the first of the signed logging trails, is located about 4.8 miles on the right. Trail length: 1.1 miles.
T5661D appears shortly after T5661C (mile 5.2 on right). Trail length: 0.5 miles.
T5661F (at mile 5.3 on right) is 2.6 miles long.
T5661Q (at mile 6.6 on left) is 0.8 miles.
T5661H (at mile 6.8 on right) is 0.4 miles.
Map available here: