HW 64, about 3mi south of Dulce before the reservation edge.
There is wide open road and a 55 mph speed limit. They had 2 marked Ford Explorers with radar working both directions and after you come over a slight rise, they have you painted. It cost me $100 when I got caught, and while I was getting my ticket, the other cop caught 2 other cars heading north. Be careful! Stay within the limit and not get dinged like I did.