If you look at area 51 from a satellite view, you will see at the North side of the base its self. That there is a image of what is called a perfect spiral. It is placed on the dry lake bed and is 100s of yards long. If I'm not mistaken this is a mathematical image. The image is outlined by roads, but there seems to be no reason for these roads being there other then to produce the image. In this same area are two long runways that are also on the lake bed and are the same color and appearance as the dirt its self, yet they have lines marked in the middle of each. This would indicate that these runways are not temporary. Dirt would need to be maintained daily. This does not seem to be happening because if it was we could easily see this going on. Not to mention the huge amounts of dust and or water and water trucks that that would be needed to keep the dust down. Both of witch would be easily detected. All of this seems to indicate that these runways and spiral are made permanent. Also there is in place and active and serious security. Vehicles also still go in and out of the base. (plans and buses) It's a very busy place if its Closed! THANK YOU MR. EYESOPEN((NUFORC Note: Witness elects to remain totally anonymous; provides no contact information. PD))