The Utah Test and Training Range (UTTR) is a military testing and training area located in Utah's West Desert, approximately 80 miles (128.7 km) west of Salt Lake City, Utah. UTTR is currently the largest overland contiguous block of supersonic authorized restricted airspace in the continental United States. The range, which has a footprint of 2675 mi2 of ground space and over 19000 mi2 of air space, is divided into North and South ranges. I-80 divides the two sections of the range. The site is administered and maintained by the US Air Force's 388th Range Squadron (388RANS) stationed at Hill Air Force Base

Hill Air Force Base

Hill Air Force Base is a major U.S. Air Force Base located in northern Utah, just south of the city of Ogden, and near the towns of Clearfield, Riverdale, Roy, Sunset, and Layton. It is about north of Salt Lake City. The base was named in honor of Major Ployer Peter Hill of the U.S. Army Air...

, Utah.

Activities

The Utah Test and Training Range (UTTR) is host to a variety of training and testing missions for the United States Air Force, United States Army, and United States Marine Corps. The site is frequently used for the disposal of explosive ordnance, testing of experimental military equipment, as well as ground and air military training exercises. The Utah Test and Training Range works in close conjunction with Dugway Proving Ground

Dugway Proving Ground

Dugway Proving Ground is a US Army facility located approximately 85 miles southwest of Salt Lake City, Utah in southern Tooele County and just north of Juab County...

 (DPG) for military training exercises.

The site has also been used as a landing site for sample return in NASA's planetary science missions including comet material in the Stardust mission

Stardust (spacecraft)

Stardust is a 300-kilogram robotic space probe launched by NASA on February 7, 1999 to study the asteroid 5535 Annefrank and collect samples from the coma of comet Wild 2. The primary mission was completed January 15, 2006, when the sample return capsule returned to Earth...

 and the upcoming OSIRIS-REx

OSIRIS-REx

Origins Spectral Interpretation Resource Identification Security Regolith Explorer is a planetary science mission, the third selected in the New Frontiers Program. The mission will study and return a sample of a carbonaceous asteroid to Earth for detailed analyses in about 2023...

mission to return material from an asteroid.