If you missed the re-run this month, you can also witness a Pony Express reenactment during Gold Rush Days at South Pass City Historic Site July 9–10.

Pony ExpressThe Pony Express only lasted 19 months, but it was the stuff of legends, so much so that for 37 years the National Pony Express Association has been holding annual re-rides across the U.S.

Once upon a time, Pony Express riders galloped on horseback across the plains from St. Joseph, Missouri to San Francisco, California, handing off of the mochila—mail bag—from one rider to the next.

This month, more than 600 riders will cover the 1,966-mile route along the Pony Express National Historic Trail from California to Missouri, passing through Wyoming’s Wind River Country today, Monday, June 20.

Two of those riders are Heidi Powell and her daughter, Vanessa, 19, of Riverton.

“It’s just really cool to be able to ride from Atlantic City to Jeffrey City,” Heidi, captain of the Rocky Ridge Division said, describing a quiet mountain pass in Fremont County on BLM Road 2302. “It’s too surreal to be able to explain, but to be able to ride your horse at night, and you’re just moving—you don’t have much to think about because there isn’t a lot of traffic—it’s just beautiful.”

Approximately 10 horses and six riders will cover the 77-mile stretch between Atlantic City and Jeffrey City tonight, and one of the key differences is that riders each only run a few miles—rather than the full stretch between stations—before handing off the mochila.

Atlantic City is scheduled to get the mail between 7:30 and 8 p.m. Monday, June 20, though the National Pony Express Association points out the mail can run up to two hours ahead or behind schedule. Interested viewers can watch the riders from town, as well as tracking them online thanks to the GPS unit riders will carry in addition to 900-1,000 U.S. Mail letters.

“Atlantic City is just a cool place to be anyway,” Heidi said. “It will still be daylight, so you will be able to see the riders, the trailers, the transition of the mochila.”

Follow the Moments That Make Wind River Country


See Wind River Country as it happens, on the trail, in town and out on the land. Follow along for real moments from real people, and share your own journey by tagging @windrivercountry.

No matter how you found our account, we're happy you're here. This is Wyoming's Wind River Country, a destination with wide-open landscapes, living cultures and the kind of space that lets you breathe deep. Come find your West with us here in Wyoming. Learn more at the link in our bio. Photo: @bradytildeath #wyoming #windrivercountry #thatswy
When you road trip through Wyoming, you may not expect to find a place like red canyon. With striking landscapes, it's one of those places that invites you to slow down, breathe deeply and take in the view. Photo: @montanatia #Wyoming #WindRiverCountry #ThatsWY
Life gets busy. We believe in slowing down, soaking it in and enjoying life at the Wyoming pace. Photo: Gary Kunis #WindRiverCountry #Wyoming #ThatsWY
Fall in Wyoming. You’ve got to see it for yourself. 🍂 #windrivercountry #wyoming #thatswy #cowboystate
Wyoming's best fishing days happen in the fall! 📸 @jakeysforkphoto #WindRiverCountry #Wyoming #ThatsWY
Fall nights in Wyoming are made for stargazing! 📸 Photo by Bill Sincavage #WindRiverCountry #Wyoming #ThatsWY #RoadTrip #StarGaze #StarGazing #Stars #DarkSky
Welcome to Wyoming, where the West is still wide open, boots are well-worn and cowboys reside. Photo: @bradytildeath #WindRiverCountry #Wyoming #ThatsWY