Desert Rock Airport (KDRA), with a 7,500 foot runway, has been linked to CIA activities:
http://www.sourcewatch.org/index.php?title=Desert_Rock_Airport
http://vectors.usc.edu/issues/4/trevorpaglen/page2.php?primaryId=3&secondaryId=11
Aero chart: http://skyvector.com/#46-17-2-3059-4047