The Atlantic Test Site was the location in which the Princeton Experiment took place. During the Cold War, NASA used the Atlantic Test Site to monitor the Sputnik Satellite. It was later converted into a state park and it currently acts as a meeting place for the Order.
Daniel Shipman investigated the area in August 2012 and found melted candle wax on the antenna there where Greg Benson was initiated.
In February 2014, Chris, Alex and Heather disguised themselves as members of the Order and infiltrated a meeting. When one of members recognized their voices, they pulled out their guns and killed everyone there. They only injured the last member and discovered it was Matt Sharky, the man who let them live with him after their families were murdered by the Order. He revealed he was a member of the Order for years and that he knew about the murders of their families. He claimed that he wanted to escape for years and became too scared to go through with it after the Noah Maxwell incident. Consumed with anger, Chris shot him through the head.