This is one of my favorite Aviation images.
The helicopter is a Keystone CH-47 Chinook, piloted by Larry Murphy, an EMS chopper pilot and National Guardsman from Allentown, Pennsylvania. The amazing landing was not part of a rescue mission, however, but rather a pick-up of "Persons Under Control" (prisoners) captured by U.S. soldiers during Operation Mountain Resolve in the Nuristan province of Afghanistan in 2003.