Sandstone Sixer

The Sandstone Sixer invites runners to explore the rugged beauty of Colorado's Douglas County on Saturday, November 7, 2026, at Sandstone Ranch Open Space in Larkspur. This unique timed race offers participants a six-hour window to complete as many eight-mile loops through the scenic ranch land as they can manage.
Each loop ascends 765 feet and traverses varied terrain ranging from rolling hills to runnable stretches that provide plenty of opportunities for runners to push their pace without encountering technical challenges or steep climbs. The course is nestled between elevations of 6,533 and 6,843 feet, offering a serene backdrop against the quiet expanse of Sandstone Ranch.
Runners can expect aid stations every four miles along the route, ensuring they are never more than half a loop away from essential supplies such as water, snacks, and medical support. The race also features a friendly checkpoint halfway through each loop where participants can rest or refuel before continuing on their journey around the ranch's 2,038 acres.
For those aiming to test endurance limits, completing four loops will earn them an impressive 32 miles, comfortably surpassing the standard 50K distance. Those who push further and conquer five full loops will rack up a commendable 40 miles, earning additional raffle tickets along with their achievement medals. The race organizers acknowledge that six complete laps are a rare feat but promise substantial rewards for those ambitious enough to attempt it.
Registration includes a custom-designed hat and entry into the post-race raffle, adding an extra layer of excitement beyond the physical challenge on offer. Whether you're looking to push your limits in a friendly setting or simply enjoy a long-distance run with company and support every few miles, The Sandstone Sixer offers something for all levels of runners.
With its blend of scenic beauty, runnable terrain, and supportive atmosphere, this event stands out as one of the most welcoming places on the calendar for those seeking to tackle significant distances. Come prepared to see what you're capable of over six hours in the serene landscape of Sandstone Ranch.
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