AMP: 408 Location: SR 77 and Indian 6, Navajo Cty SR 77 begins quietly as Indian 6 transitions into Route 77 as we leave Navajo Nation about halfway between SR 264 and Holbrook. The highway goes all the way down to Tucson. AMP: 408 Location: SR 77 and Indian 6, Navajo Cty As 77 begins, … Continue reading State Route 77, BIA 6 to I-40