How big is it?
The short track is fairly flat, but there's a lot of dead fall, and there's this one bridge----
http://i36.photobucket.com/albums/e6...ps03e75e06.jpg
http://i36.photobucket.com/albums/e6...psa3f049b2.jpg
http://i36.photobucket.com/albums/e6...psff19b2b7.jpg