We changed the transition to the switching yard, added more spurs. We also
were experiencing derailing problems in a number of areas due to track
elevation changes and the tilt of the track from one side to the other [ie not
level]. We used clay to build the track higher and to level it out on the board.
Trains would jump the track, because of the speed through the curves at the
bottom of the grade, which is required to climb the hill out of that turn.
At the far end of the picture the big radius turn needed to be elevated about
2 to 2 1/2 inches. It makes it easy to tie into the existing landscape and keep
the track level. It also works as a great anchor point to hold the track in
place.