Presque Isle, Maine. It's pretty much one room. Last time I was there, I checked in at the counter and asked when TSA would open. The counter agent said, "Oh, I think I'll open now" and walked over to the one scanner and flipped the sign to open. I guess there are technically two rooms, because after the TSA station, you walk through the door to a smaller room until it's time to board. Then you walk out the door and up the plane steps. The woman who checked me in and ran TSA was the mother of the flight attendant. As much as I don't like to fly and detest tiny airplanes, I'm so sad my route involving Presque Isle was discontinued last year- saved me 12 hours of driving each way, and the plane flies low enough for a spectacular view of the top of Mount Katahdin.