Yeh, well...
[link|http://www.virtualology.com/virtualmuseumofnaturalhistory/hallofgeology/mountains/mountkilimanjaro.org/|Mount Kilimanjaro] is only a couple hundred miles away from the equator and it has glaciers. Altitude does make a difference. But, [link|http://www.nationalgeographic.com/wildworld/profiles/terrestrial/na/na0526.html|Sierra Juarez and San Pedro Martir pine-oak forests], which are near there, only range 3600-9200 feet in altitude. I don't think that would cut it for glaciers. :)
Now that I've got it placed in the big picture, I think that "snake" is actually located in the estuary around the Colorado River delta essentially at sea level.
Alex
The trouble with the world is that the stupid are cocksure and the intelligent are full of doubt. -- Bertrand Russell
