The highway road from Gallup New Mexico to Colorado is 20 miles East of Arizona border and is now called 491!…..there are 2/3 routes to up North!. On the reservation, Alcohol is illegal..this wicked road on this long stretch of Road claimed many drunk drivers and their victims..from the town of Gallup to TOhatchi is a 20 mile stretch of highway.. but in between you were on the Navajo reservation and dui,dwi laws didn’t apply to you! It did.. but on a separate piece of paper!!