Contact Us
Make My Homepage

America’s Longest Highway Weaves Through Beautiful Wyoming

61st Annual Sturgis Motorcycle Rally
David McNew, Getty Images

When you see a zero in a U.S. highway number it means that road runs east to west, from coast to coast. U.S. Route 20 is one of those highways according to It begins in Boston and ends in Oregon. Total miles from end to end equal 3,365.

A drive across U.S. 20 through Wyoming means a drive through the center of the state in two directions. Traveling east to west the highway passes through Lusk, then merges with Interstate 25 before separating again in Casper.

Part of the reason it runs longer than any other highway is because it runs the east side of Boysen State Park through some amazing lake scenery before turning up north through Thermopolis, Worland and up to Greybull, then into Montana before it turns west. Once in Idaho, the highway turns south, then west again, to avoid the Idaho mountains.

Driving U.S. highways in the more populated states, such as one might find on the east coast, means going slow. There are many populated towns, high traffic areas and traffic lights. But U.S. 20 in Wyoming means a longer trip in miles, but far less traffic and very few traffic lights and landscape that never stops changing.

If you look at a map of U.S. 20, coast to coast, it becomes apparent that it is America’s longest highway because of Wyoming. Add that to our list of things to brag about.

Most travelers stick to the interstates, especially when crossing what is referred to as “Flyover Country.” But it’s the old highways like U.S. 20 where you will find some of the most interesting towns and scenery in the nation.


Recommended For You

Best of the Web

Leave a Comment

It appears that you already have an account created within our VIP network of sites on . To keep your personal information safe, we need to verify that it's really you. To activate your account, please confirm your password. When you have confirmed your password, you will be able to log in through Facebook on both sites.

Forgot your password?

*Please note that your prizes and activities will not be shared between programs within our VIP network.

It appears that you already have an account on this site associated with . To connect your existing account just click on the account activation button below. You will maintain your existing VIP profile. After you do this, you will be able to always log in to using your original account information.

*Please note that your prizes and activities will not be shared between programs within our VIP network.

Please fill out the information below to help us provide you a better experience.

(Forgot your password?)

Not a member? Sign up here

Sign up for VIP quickly by connecting your Facebook account. It's just as secure and no password to remember!

Sign up to have exclusive VIP contests, events, coupons, presales, and much more delivered to you for FREE.