This is a question for all the SoCal Railfans out there.
I was looking at a photo in one of the recent CTC Boards and it showed a BNSF freight going through Fullerton’s station. Off to the left (not sure which geographic direction), away from the triple track mainline, there seemed to be a siding of one or two tracks with a Budd dome car and some other apparently private varnish cars. Is this a siding at the station? A museum? An illusion in the photo? 
There are 2 (I believe) sidings on the north side just east of the restored Santa Fe station. Parked on it are a couple of privately owned cars, including a Pullman and a Dome car. They are currently restored or being restored. There is also a restored caboose.
A RR museum is planned for the area east of them, and Fullerton RR Days (May) takes place in the parking lot northeast of the station. Last May there was a visit from a brand new BNSF Locomotive and the restored Santa Fe 3751 steamer, which, though owned by a San Bernardino group, is normally stored in Los Angeles.
Fullerton station is one of the best places to watch trains in SoCal. :A nice little cafe at the station with a patio and shade to sit on. Many railfans meet there and east down the tracks near the restored cars. Lots of comfortable seats available, several really good restaurants in easy walking distance, and, on weekdays, about 90 trains a day of all types: Metrolink, Amtrak’s Pacific Surfliners, the Southwest Chief, and many long frieghts. (Fullerton is on BNSF’s Transcon Route.)
Jack
I’ve just been asked to attend a meeting in north Anaheim next week- flying in Tuesday morning, returning Thursday morning. Anybody want some fresh pictures? I might be able to spare alittle time Wednesday afternoon/evening.
One of the tracks on the opposite side of the main from the depot was a business car spur for many years with MU hookups and also was a track material storage and unloading point with a fenced compound. The other track was a lead to a now long-gone citrus warehouse and team track for Hunt Foods during produce season.
The UP Depot/ spaghetti factory was moved to the current location in the early 1980’s.
I was there two years ago and almost did not recognize the place.