Desert Rock Airport is in a town north of what route? 
Desert Rock Airport: Desert Rock Airport is a private-use airport located three miles (5 km) southwest of the central business district of Mercury, in Nye County, Nevada, United States. Mercury, Nevada: Mercury is a closed city in Nye County, Nevada, United States, 5 mi north of U.S. Route 95 at a point 65 mi northwest of Las Vegas.
U.S. Route 95