Location: Ute Hwy and US-36, Boulder Cty Reassurance shield as 66 begins. At one point in life, 66 also followed 36 west into the national park Location: Ute Hwy and 75th St, Boulder Cty Reassurance shield after the 75th St interchange. 66 is basically a rural arterial for the duration of its route Location: Ute … Continue reading Colorado State Highway 66, US-36 to US-287