Vintage Alamosa

Greetings,
I guess I would like to get a grip upon the train traffic patterns/train movements into and out of Alamosa in the 1950’s, and maybe into the 60’s
How often did the standard gauge trains arrive from the east?
How often did they go south and west?
How often did the narrow gauge trains leave/arrive?
What kinds of goods were commonly shipped on both gauges?
What goods were transferred between the gauges?
Where, in the yard, was this transfer action completed?
What train crews were stationed at Alamosa? Only the narrow gauge people? Or both?
Does anyone have a track plan of Alamosa circa 1960?
When did the narrow gauge passenger trains cease? Were they mixed trains?
When did the standard gauge passenger trains cease?
If someone could answer this barrage of questions, or point me to a good web site for the answers, that would be great!
Thanks,
Joe