Sometimes, a marathon doesn’t cover enough miles. And sometimes, an urban race feels wimpy.

For those times, we present the Trans-Pecos Ultra, set this year for Oct. 23-29.

The six-stage, 163-mile race takes athletes across soft sand, up rocky cliff sides, through river beds and along packed gravel roads at Big Bend Ranch State Park in West Texas. It’s hilly, too, with a cumulative 15,000 feet of elevation gain.

Don’t think you can run that far? Staggering is allowed.

This year’s Trans-Pecos Ultra starts Oct. 23 at Big Bend Ranch State Park. Photo by Gary Nored/Trans-Pecos Ultra

“Remember, this event is open to everyone: you can run, walk, or even crawl, just don’t give up,” the website says.

Participants can even stop in Lajitas to have their photo taken with Clay Henry III, the resident beer-drinking celebrity goat and mayor.

Athletes from as far away as Australia and France have registered for the self-supported, multi-stage race. They’ll carry their own food and equipment over the rugged terrain, but gather each night to camp.

For more information, go here or email info@trans-pecosultra.com.

The race covers 163 miles in six stages. Photo by Gary Nored/Trans-Pecos Ultra