Bob downloaded the PDF article on building concrete mountains and many bags of plastic cement later he has built a fabulous system of mountains and tunnels for his outdoor layout. Bob sent me several pictures of what he was able to build on his layout so far.
Bob has a number of tunnels running through his mountains where his tracks loop around in front of his observation and control booth.
Here is a great view of Bob’s layout. Note the bridge in the right background which goes over the future water feature. The layout is still under construction.
Bob really did a great job incorporating the cement work into his layout.
Here you can see how Bob ran a drain through his retaining wall.
(Originally posted 12/7/2012)