Common: US 491-666-163
Monticello. US 666 north end (1970-2003); US 163 north end (1983-1985); US 491 north end (2003-present)
US Highway endpoints in Utah
The URL for this map ends with the 2-letter state abbreviation "UT"; if you'd like to see endpoints in Colorado, just replace the "UT" with "CO". You can quickly jump to any other state using that method, with a few exceptions: for any of the six New England states, use "ME". For Delaware, use "MD". For Nevada, use "CA".