The navy's largest complex is Naval Air Weapons Station (NAWS) China Lake, California, which covers 1.1 million acres (4,500 km2) of land, or approximately 38% of the United States Navy's total land holdings worldwide. Representing 85% of the Navy’s domestic land, China Lake is used for weapons and armaments research, development, acquisition, testing and evaluation (RDAT&E).

In an area larger than the state of Rhode Island, at least 95% of that land has been left undeveloped. The roughly $3 billion infrastructure of the installation consists of 2,132 buildings and facilities, 329 miles (529 km) of paved roads, and 1,801 miles (2,898 km) of unpaved roads.

China Lake Naval Air Weapons Station is the high desert home of the Naval Air Warfare Center Weapons Division, where the Navy and Marine Corps have developed or tested nearly every significant airborne weapon system in the past five decades.

Missiles such as Sidewinder, Shrike and Walleye are just a few of the many products at China Lake, which developed for the fleet.

Recently, the China Lake facility was highlighted on 60 Minutes, a US tv news magazine showing testing using 100 autonomous Perdix drones.

Obviously, when you think Navy, you think water, and yet here in the high desert (over 2,200 feet above sea level at the base but encompassing mountains that soar much higher) is where the US Navy holds the majority of its property.

More Info: en.wikipedia.org