As a kid our family took a 2-week trip to Mexico and we went all the way to the Yucatan staying in Merida 2-3 nights. We chased a 1880 4-4-0(some rode) mixe to Progresso in a chartered bus(20 in the group), but never did anything with the narrow gauge.
As I remember there were three gauges in Merida, and we saw at least one train depart the train shed(station)of each gauge. Would any of them have been 2 footers, or were they larger. I assume one gauge might have been 3 foot and the other perhaps meter?? Unfortunately my dads old 8mm movies which we transfered didn't have any of them in it, although there is a little Pueblo-Mexico city 3 foot gauge which we rode.
Greg Scholl