The Loops
Railroads often follow small streams to gain elevation in surmounting a mountain range. One of the finest examples of this type of engineering can be found at the Horseshoe Curve near Altoona, Pennsylvania. Our layout didn't have that kind of space, so we used a winding creek valley as a way to loop around and over the mainline to gain elevation.
Click on a place name in the above drawing to continue the photo tour or scroll to the bottom for links to the adjacent places.