The HO modules are the basic NMRA style of 2' X 4' x 40". The difference with our division is the addition of a yard splitting the square and setup as a point to point with one half of the yard being Roseville California and the other Burnham Yard in Denver. With a split yard, we can run a couple of different operation schemes. Waybill, through freight, lcl, locals, and passenger are all possible. The club owns the four corners and the yard and right now, with all of the possible modules in place the largest possible setup is 24' X 24'. Power is supplied with four Aristrocraft Throttle Engineer Wireless controllers and two local MRC throttles. All of the throttles run through four towers with block control.