Interesting. It took me quite a while to find this.
http://www.northcom.mil/newsroom/news_release/2006/090506_a.htmLaunch Abort Sites (LAS) and East Coast Launch Abort Landing Sites (ECALS)
Additionally, U.S. military units at the following Shuttle Launch Abort Sites are on alert to support an emergency landing during the launch phase for STS-115. These facilities lie near the intended flight path for STS-115:
Atlantic City International Airport, N.J.
Oceana Naval Air Station, Va.
Dover Air Force Base, Del.
Otis Air National Guard Base, Mass.
F. S. Gabreski Airport, N.Y.
Pease Air National Guard Base, N.H.
Marine Corps Air Station Cherry Point, N.C.
DoD Augmented/Emergency Landing Sites
If the shuttle experiences an on-orbit emergency and has to land immediately, NASA has established several civilian and military landing sites around the world. U.S. military personnel at the following locations are prepared to support an emergency landing of the shuttle:
Augmented Sites: While the Primary Landing Site is Kennedy Space Center, Fla., alternate DoD Augmented Landing Sites Edwards Air Force Base, Calif., Holloman Air Force Base and White Sands Space Harbor, N.M., can be quickly readied to support a shuttle landing with an on-scene commander, fire/crash/rescue forces, and medical evacuation capabilities.
Emergency Landing Sites: These locations are strategically located around the world in the flight path of STS-115. They have runways long enough for the shuttle and have compatible navigation aids. The following Emergency Landing Sites are located within the United States:
Atlantic City International Airport, N.J. (ECALS)
Marine Corps Air Station Cherry Point, N.C. (ECALS)
Cape Canaveral Air Force Station, Fla.
McDill Air Force Base, Fla.
China Lake Naval Air Weapons Station, Calif.
Mountain Home Air Force Base, Idaho
Dover Air Force Base, Del. (ECALS)
Oceana Naval Air Station, Va. (ECALS)
Dyess Air Force Base, Texas
Otis Air National Guard Base, Mass. (ECALS)
Ellsworth Air Force Base, S.D.
Pease Air National Guard Base, N.H. (ECALS)
Elmendorf Air Force Base, Alaska
Vandenberg Air Force Base, Calif.
F.S. Gabreski Airport, N.Y. (ECALS)
The emergency recovery sites have only the minimum number of people needed to assist the astronauts and will respond to a shuttle landing as they would for any large aircraft emergency landing.