Area 51 abandoned? Operations shifted elsewhere? According to Popular Sciencethere are no more “UFO” sightings, guards in Jeeps, and advanced unattendedground sensors. On the other hand we have the very enthusiastic Groom Lake observer Norio Hayakawa who claims it is actually expanding and Wired backs it up with some good research. So no worries, tons of cool shit is still taking place. I figured it was still worth checking out the alleged replacements for the Dreamland Resort.
Michael Army Air Field, UT
Dugway Proving Grounds, UT
Hollman Air Force Base, NM
Green River(Utah) Launch Complex

Green River is shut down, but played a large role in the development of the US missile arsenal. An unlikely successor or even peer to Area 51 considering you can walk right up to it. Michael and the Dugway Proving Grounds are quite interesting peers to Area 51. Michael was selected as one of 3 landing sites for the cancelled X-33. The fields location at the 1,200 square mile Dugway Proving Ground makes it the ideal location for testing operations. The proving grounds also support research for the U.S. defense against chemical and biological weapons. The remote site is perfect for such high risk research and in the past has been used for open air tests of chemical and biological weapons. Holoman Air Force Base is definitely a peer to Area 51, hosting the QF-4 drone squadron and being the nations home base and training location for the F-117 stealth fighter. Both Holloman and Michael are really secret bases, but they represent ideal locations to test lower profile stealth and low-observable unmanned aerial vehicle technologies. Satellite Photos:
Michael Army Airfield: 40°11’48.76″N 112°56’37.90″W - MichaelsAAF.kmz
Holloman Air Force Base: 32°55’36.79″N ?106°15’1.41″W - Holloman AFB.kmz
Green River Launch Complex: 32°55’36.79″N ?106°15’1.41″W