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The Snake US421 Loop is located in Eastern Tennessee and Western North Carolina.  Starting near Bristol, TN, this loop travels many amazing roads including US421, the Snake.


In addition to many elevation changes and S-curves, the route also includes several hairpins and switchbacks, so keep an eye on your speed as you are coming into the curves.


In addition to the Snake, this route will take riders on several other amazing roads including a stretch of Old US421 and even some paved town roads.


Be sure to check out ‘The Snake US421’ on your next trip to Tennessee!

Motorcycle Rides, Tennessee, Bristol, Shady Valley, Mountain City, Creston, Sugar Grove, North Carolina, Elizabethton, Hampton

Location:  Eastern Tennessee

Approximate Mileage:  140  miles

Estimated Riding Time:  4.5   Hours 

Surface:  Paved



The Snake (US421), Old 421, Jack’s Corner, Stone Mountain General Store, CAS Camp Mast 1863, Watauga Point Recreation Area.

The Snake US421 Loop

  • Our digital routes are designed to operate in most GPS devices.  In addition to GPSs, our routes should work with several smartphone apps.  They will NOT work on Google Maps or Apple Maps.


    If you plan on using a smartphone app, we recommend the REVER app.  REVER will work with both Android and iOS and in addition to navigation it has many other great features.


    For best results in REVER, download the route to your computer first, then import into your smartphone.  Turn by turn may not work, so we recommend that you utilize the "Follow the Line" option. 


    You can get 20% off your first year’s subscription to REVER by following THIS LINK.

    AND using this coupon code at checkout:  Driftlessforless.


    By using this link and coupon code a portion of your subscription fee will go to support Driftless Roads USA.



  • If you are riding with a group, we ask that every person using our route for navigation purchase their own copy.


    In order to encourage this, we are happy to offer a discount for group purchases. Please contact us after purchasing one item at full price and we will set up a coupon code that will give everyone in your group 50% off of the same item.

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