Highways that are signed only as USBRs

[Kniwt]

While out and about today, I came across something I'd never seen before: A road whose only signed route number is a U.S. Bicycle Route. In this case, it's Mammoth Creek Road in southern Utah (a 15-mile connector between UT 14 and UT 143), which is officially Dixie National Forest Road 050 but has no such posted signage. Instead, there is this:



So, the question: Are there any other rural highways that are signed only as USBRs? Short stretches of streets within cities probably don't count.

[hbelkins]

It's possible that a portion of the route of USBR 76, which has been signed across Kentucky, is. The route mostly runs across state highways but I'm pretty sure there are a couple of places in central Kentucky where it's routed on county roads. One of my roadgeek goals is to drive the length of USBR 76 in Kentucky; I've driven several segments of it and have completed the portion between the Virginia state line and where it departs KY 1295 in Garrard County.

[MNHighwayMan]

Is there somewhere a comprehensive map/list of the US Bicycle Routes? I don't think I've ever seen a sign for these in person.

[Kniwt]

Is there somewhere a comprehensive map/list of the US Bicycle Routes? I don't think I've ever seen a sign for these in person.

Here's a high-level map of the U.S., including both existing and proposed routes. Sort of like the big map at the front of the RMcN.

https://www.adventurecycling.org/?LinkServID=42FEF15A-C82B-B6B5-05332AF5736EC1E6