Hunting has priority at Pine Log Wildlife Management Area. The forest roads are closed during deer firearms seasons (check the hunting regulations, here
). During deer archery and turkey season, the forest roads are closed to other users until after 10:00 a.m.
There's not much special about this forest road. It follows and crosses an unnamed creek several times as it passes through an area that is used for commercial logging. Last few hundred yards are especially steep.
Supposedly, there were some singletracks that branch off of this road including one at the terminus that goes all the way to the summit of Pine Log Mountain (outside the WMA). But they aren't marked on the official WMA maps and I've never had much luck finding them.
Unfortunately, it takes a PhD to understand when you can ride and how much it will cost. See Restrictions for trail closures during hunting season. As for the cost, from the odd government regulations category...
You'll need a hunting or fishing license to be present on the property (2017 annual $15/$100 resident/nonresident) whether or not it is hunting season and even if you're not hunting. (The property is owned by Aubrey Corporation; hunting rights are leased by the state).
If you have objections to buying a hunting/fishing license, you can purchase instead a "Lands Pass" (2017 annual $30/$60 res/nonres). The Lands Pass actually costs more because of the "loss of federal funds that come with hunting or fishing licenses".