Question: How long is the road course in the auto racing track that is across from a United States Air Force installation in Nevada?

The Stardust International Raceway was an auto racing track in Spring Valley, in the Las Vegas Valley.  It was built in 1965 by the Stardust Hotel and Casino to attract high rollers to the hotel.  In 1966 it began hosting the season finale of the Can-Am championship.  In 1968 the USAC Championship Car series held a race at Stardust.  The hotel was sold in 1969, and the new owners largely abandoned the track.  It featured a flat, 3 mi , 13-turn road course, and a quarter-mile drag strip.  Larry Horton, the track's manager, leased the land and ran drag racing events until 1970.  Real estate developers Pardee Homes bought the land and built the Spring Valley community on it.  Meanwhile, a replacement track, the Las Vegas Speedrome, was announced afterwards and opened in 1972, with a 1.8 mile drag strip and road course across from Nellis Air Force Base, which expanded into today's Las Vegas Motor Speedway. <SEP> Patrick Air Force Base (IATA: COF, ICAO: KCOF, FAA LID: COF) is a United States Air Force installation located between Satellite Beach and Cocoa Beach, in Brevard County, Florida, in the United States.  It was named in honor of Major General Mason Patrick, USAAC.  An Air Force Space Command (AFSPC) base, it is home to the 45th Space Wing (45 SW).  In addition to its "host wing" responsibilities at Patrick AFB, the 45 SW controls and operates Cape Canaveral Air Force Station (CCAFS) and the Eastern Range.  It was originally opened and operated from 1940 to 1947 as Naval Air Station Banana River, a U.S. Navy airfield.  It was then deactivated as a naval installation in 1947 and placed in caretaker status until it was transferred to the Air Force in late 1948. <SEP> ) is a United States Air Force installation in southern Nevada with military schools and more squadrons than any other USAF base.  Nellis hosts air combat exercises such as Exercise Red Flag and close air support exercises such as Green Flag-West flown in "Military Operations Area (MOA) airspace".  associated with the nearby Nevada Test and Training Range (NTTR). Nellis Air Force Base ("Nellis" colloq.  The base also has the Combined Air and Space Operations Center-Nellis. <SEP> Texas World Speedway, was built in 1969 and is one of only seven superspeedways of two miles (3 km) or greater in the United States used for racing, the others being Indianapolis, Daytona, Pocono, Talladega, Auto Club, and Michigan (there are several tracks of similar size used for vehicle testing).  TWS is located on approximately 600 acres (2.4 km²) on State Highway 6 in College Station, Texas.  There is a 2 mi oval, and several road course configurations.  The full oval configuration is closely related to that of Michigan and is often considered the latter's sister track, featuring steeper banking, at 22 degrees in the turns, 12 degrees at the start/finish line, and only 2 degrees along the backstretch, compared to Michigan's respective 18, 12, and 5 degrees.  The last major race occurred at the track in 1981.  The track wasl used by amateur racing clubs such as the SCCA, NASA, Porsche Club of America, Corinthian Vintage Auto Racing, CMRA, driving schools and car clubs, as well as hosting music concerts and the like.