In Michigan we have a group called The Michigan Trail Riders. We ride from Lake Huron to Lake Michigan with several camps and marked trails. It is an organized ride approx. 240 miles total. It's a blast, we take our rigs and move them each morning to the next camp, while leaving our horse n saddle back at the previous camp. Our blue bus picks up the rig drivers to bring them all back to previous camp. Then we saddle up and ride. It takes 10 days riding each day or a 2 wk ride with a couple of off days.
So you can even go under I-75 main interstate hwy. So if you go this way the trail is ready until you reach the water.
Don't give up on your dreams, sometimes that all we have.