Creating a pinpoint national MTB Trail map to locate trails worth visiting, to make it easy for people to map out cross country road trips while hitting as many fun/bucket list spots as possible.

I am asking for your help if you know exact locations of trails and they are worth visiting on a cross country road trip please post them up either here or on the map itself.
National MTB Trail map

I will be updating it as much as I can the next few months as I plan out an epic road trip.

Thanks