For my scenery, I created hills by building-up layers (one at a time) of one-inch-thick extruded pink foam. The layered pieces were shaped (in planform and slope) with a razor saw before being attached. I glued the layers together with a combination of two-part epoxy and yellow carpenter's glue. Polyurethane foam rock shapes and plaster rock shapes from rock molds were glued to the built-up shape and the foam was then covered with a layer of mold-a-scene lightweight plaster molded by hand to obtain the final shape before adding ground cover, small rocks and trees.
MELGAR