Its super easy.
1. Go to Wal-Mart, Lowes, or similar store and look for yard signs made of thin plastic sheeting.
2. Cut the sheeting with scissors to the desired shape (I started with 12" x 2 3/4" pieces).
3. For the roads, I spray primed the plastic with a reddish brown primer. For the rivers I used a glossy dark blue spray paint.
4. On the roads I used plain old white glue to create the appearance of ruts in the road.
5. I painted the roads with a very lightly thinned Ceramcoat Spice Brown.
6. For the rivers, I used a green wash on the edges of the river and feathered with a cheap brush for a blending effect.
7. For the rivers, I then used an off-white and painted some squiggly lines to give the appearance of water movement.
8. For the rivers, I then gave the river a wash of darker blue, leaving just a hint of the squiggly lines in the water.
9. On the roads, I used washes of dark brown and tan to give the road some depth. I put down a thin line of white glue down the middle of the road and flocked it with Woodland scenics green flock.
10. On both the roads and the river, I put down a thin line of white glue on the edges and flocked with Woodland scenics green flock.
11. Matte coat the finish product when dry and viola!!
Hope that helps,
Dave