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 509 (NM 509) is a 36.5-mile-long (58.7 km) state highway in the US state of New Mexico. NM 509's southern terminus is at NM 605 north of Grants, and the northern terminus is at Navajo Route 9 west of Whitehorse.