High Quality Content by WIKIPEDIA articles! State Road 7 is a 7.2 mi (11.6 km) long state highway in southeastern New Mexico. NM 7 begins at White City at the road`s junction with U.S. Route 62 and U.S. Route 180 which run concurrently at that location. The road travels west from there in a somewhat winding path leading to Carlsbad Caverns National Park.