Mammoth Mountain?

[hAm53]

Since we were in WDW for 17 days, and since the parks were totally empty, we took quite a few spins around Test Track. I did notice something kinda odd that maybe somebody can clear up.
In the "heat room" there's a supervisor's office. On the wall there's a poster for "Mammoth Mountain" which looks a lot like the early Everest concept art.

Am I just seeing things? Also in the "cold room" there's a pic of a hawaiian kid. So maybe the imagineers are just giving the "supervisors" some thoughts of other weather.

 

[Horace Horsecollar]

I did notice something kinda odd that maybe somebody can clear up.
In the "heat room" there's a supervisor's office. On the wall there's a poster for "Mammoth Mountain" which looks a lot like the early Everest concept art.

It's hard to see the details in the photo, but it looks like a trail map of the Mammoth Mountain ski resort in California.

http://www.mammothmountain.com/ski_ride/trail_map/