Just had a little update from my source Kronos based on the new Kristin spoiler about the Dharma station in Australia.
Here is what they said when we were discussing this. Here is a link to the Wiki entry on The 45 Parallel.
Yea, that's definitely not the only one we see. There's one up near Portland, Oregon, they are saying it's located on something called the 45th parallel. They aren't going to Oregon and it's just a set."
Source: Kronos