Ting: Checked again on this over the weekend and unfortunately it's gone the way of the "Voodoo"...no longer in use. The cache has indeed been removed, probably by the Calgary Fastball groundskeepers during their clean-up. The "Twin Pines" are still standing, however a little dried out. If you were wondering, the A/C was the CF-101. Look here for a little bit of info:
http://acam.ednet.ns.ca/voodoo/voodoo.htm
I will put another type of this cache in the near future.