So, light brown is raised, Dark brown is mountain, blue is creek, pink is structures. green is flat. Theres a nice big tunnel, two industries, two platforms, a reverse loop, a mainline track, all done with O27 Marx 3 rail track and manual turnouts. kinda pleased with it...was not easy getting things to come together in 4x8.  two places I have to hacksaw a length of straight track...reasonable.  also it's designed to start with one loop and grow. Oh, and it has a Grade, which the program says should be fine for all engines, at 1.89 inches elevation it's a 4% grade...very steep for real railroads, but just pretty steep for O gauge models.