This one is so incredibly easy. One 9 x 13 chocolate and one pound cake in a casserole pan. The casserole shape was the mountain and the pieces cut off at the corners and to fit the round into the corner of the 9 x 13 became the ramps and hills. Couple crushed cookies as the dirt, a few cars and wa-la! Granted the icing job wasn't the best, but I frosted and decorated this cake in 13 minutes.
Maybe I should call this the Procrastination Cake.