We all know the story behind the creation of this Memorial. Right now the Memorial is temporary while the National Parks System constructs the permanent Memorial. They plan to have the permanent Memorial open on Sept 11 2011.
These 3 photos show the permanent Memorial being created, the 3rd shot is a close up of where the plane went into the ground. The crater created by the impact was 15 feet deep and 30 ft diameter. The crater was backfilled after the investigation and wild flowers and grasses planted on top.