Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
State Road 420 (NM 420) is a state highway in the US state of New Mexico. Its total length is approximately 30.4 miles (48.9 km). NM 420's western terminus is at NM 102 east-northeast of Mosquero, and the eastern terminus is at NM 402 south of Amistad.