The N-Trak layout is a modular layout built to the US N-Trak standards, you can read more about the standards here.  This means that the modules are compatible with other modules from other clubs and members and can be built in a variety of configurations and sizes.   There are two main lines and one branch line, all three lines pass through the hole layout.  The branch line tends to have all the yards and industries on it for switching activities or shunting.  Below are some photos of some of our modules.