Recently I happened across the estate sale of a former MN Zoo employee. I was able to pick up a number of old zoo shirts ranging from the 1980s to more recently. A few of these have a neat little “Conservation” montage of zoo animals and the monorail:
There were also quite a few issues of Minnesota Zoo Magazine from the 1980s. A few of them had monorail-related pieces, including a neat shot of the snowplow in action.
And we even found a monorail ticket from 2008! (Two-sided scan below)
Some of these will probably end up in my mini-museum in the monorail cab.