hehe....I'll have to water it occasionally and see if it grows
The base is made from three layers of thick plastic that I salvaged from an old tri-fold display stand they were throwing away at the office. I used contact cement to secure the three layers together which gave me a pretty firm base to work with. I built up the road with strips of cardboard and then sculped the contours of the hillside with polyfiller. I pained the entire base tan as a base coat and added some darker highlights to detail the run-off ditches coming down off the road.
The road surface is actually a course paper type compound that I believe is intended for model railway scenes. I weathered the road with a couple of different layers of pastel calk to give it a dusty appearence (which again wasn't really picked up in the photos, it actually not as dark as it looks in the pictures). The ground cover is fine ballast from Woodland Scenics, and I used Woodland Scenics static grass and light foiliage on the ground in and around the marshy area below the road.