If you haven't visited, you need to, there are several clubs housed inside, from N-Scale to O scale and Toy Trains, it is located at Balboa Park in beautiful San Diego Ca.
First off, we have the San Diego Model Railroad Club
Next we have the La Mesa Model Railroad Club. This club models the SP Route from Bakersfield over Techachapi Pass with amazing accuracy and scenery. The layout covers several floors, and the trains actually climb the grade as in the prototype. And yes, the Tehachapi Loop is included.
San Diego Society of N Scale Layout.
Back to Tehachapi Pass in HO
Back to the San Diego Model Railroad Club
Carizo Gorge and Goat Canyon Trestle
N-Scale Shays on display as well as a MILW
Outside of the museum