US 163 north end, 1985-present

Current 3-digit

near Bluff (UDoT has signed this as the endpoint since 1985, but they didn't obtain AASHTO approval until 2008)

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".