Is there a map for horse-friendly trails?

I love to trail ride. I'm blessed to live in an area where there are many trails so I don't have to go far. I pretty much know these trails well enough around here to know which are horse-friendly and which are not, however, these things can change and I'm not confident enough to take new trails for wondering if they are horse-friendly or if I would be risking getting in trouble with the DNR. Not every entry/exit of a trail is posted one way or the other and if I get to wandering, I have to guess. Come springtime, I'll be wandering more as I enjoy hunting for morel mushrooms and want to do it via horseback this coming spring. A couple hundred acres near us were part of a controlled burn and I know this means more morels! Good excuse for camping on the weekends near home.

Are their maps available, online or off, that would tell me where the horse-friendly trails are at? I'd love to go exploring some new areas. Big plus if those maps also show fishing spots. Fish and morels go wonderful together.