This artical says that the Aperture labs are in Cleveland, and it tells something of the Borealis.
This was created by someone who calls himself 'AJACKS'
For the orginal picture go to: Img66.imageshack.us
(I needed to cut a piece of it so I could upload it on modDB)
Yea , there may be a bind with the helo pad , but the borealis is sunken in a ice cayon , covered by combines , the heli would not fit in the cayon.
just to add to your fun, you might have been able to use this... Tineye.com
And isn’t it kind of a give away about the portal tech? The combine are stuck on earth and can’t get home, their portal tech is too slow, and it takes too long to use. They need the borealis
that is such a good idea :D