Use that map as a basic point of reference if you wind up way the hell off the beaten path. Otherwise it's totally useless. Buy a compass and orienteer your way out. Meaning that mostly you can use the Highway, the river, and your bearing to work your way out when you're tired of riding.
Most of the twisty trails are on the East end of the trail system hence closer to the highway....
Most of the twisty trails are on the East end of the trail system hence closer to the highway....