This would have been the scene. Compare to today and notice how the trees have since come up, sand in the sandbox, and no weeds on the tipple dump grade for example. Thought it was a great picture.
Wouldn't it be nice is there was a photography balcony there this summer with all the hot locos going at once!
Found this great find on Flickr photos yesterday.
Fritz Klinke has several albums of narrow gauge on this site with two featuring Chama in 1966 and 1967.
Check these and other narrow gauge photos out for a blast from the past. He has a superb collection here.
1966https://m.flickr.com/#/photos/53177163@N00/sets/72157626110397635/
1967https://m.flickr.com/#/photos/53177163@N00/sets/72157626165415354/