AMP: 388 Location: Apache Dr and Navajo Blvd, Holbrook After 77 and 180 split, we’re reminded to stay on this route for SR 377 AMP: 387 Location: US-180 and SR 77, Holbrook As we head out of Holbrook, we’ll approach the US-180 split AMP: 387 Location: US-180 and SR 77, Holbrook Stay straight for 77 … Continue reading State Route 77, I-40 Bus/US-180 to US-180