Here's a current map for the San Diego Trolley light rail. Amtrak and a commuter system called Coaster run through part of the city but proceed up the coast into North County. Those maps are not included. Needless to say, while the trolley covers about 55 miles of track stretching from Downtown San Diego to the US/Mexico border and into East County San Diego, the route pales in comparison to some of the others included on here.