Country roads and trails between Puerto Plata, Maimon, Imbert, Cupey, San Marcos

I have been trying to map out the back roads and trails that connect Cofresi, Maimon, Imbert, San Marcos, Cupey, etc, (all inside the main highway 'pocket') basically for excursions for my ATV. For example, yesterday I found trail that connects Cofresi to Maimon thats not visible on Google Earth (not even passable by jeep, just by ATV). The same road has a separate dirt road south that connects to a road from San Marcos (near the mountain) to Imbert. That dirt road has another trail to Cupey which skirts around the back of the mountain and hits the main highway near Star Hills/Montellano.

Does anybody have a map of these dirt roads and trails?

I just realized that the trails are actually visible on Google Maps, but any new or more detailed maps would help.