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The DRTE 100 ("Dirty One Hundred") is hosted 45 minutes from downtown Santa Barbara and situated entirely within the Santa Barbara District of the Los Padres National Forest. The route is comprised of dirt roads and trails that create a hybrid Out & Back course.

The route starts at the Sage Hill Campground and finishes at the historic Ranch Oso Guest Ranch.

The event is staffed with eight fully loaded Aid Stations (for a total of 16 transitions), and most are equipped with HAM support and first aid/foot care stations. There are also five Drop Bag locations (for a total of 10 transitions). Entrants can pick up safety runners starting at mile 43.91 on their outbound leg and have six locations thereafter to pick up or exchange their safety runner.

The DRTE 100 course is conveniently accessible for crew support with minimal driving. The course consists of 43.01 miles of Jeep/OHV dirt roads, 56.55 miles of single or double track trails and a .67 mile section of paved road.

Starting in the lower Santa Ynez recreation area, runners will traverse easterly to the upper Santa Ynez recreation area and turn around on Divide Peak (elevation 4,707’)—the highest summit on the course. Runners and support crew will experience the stunning and rugged topography in its late spring glory as a cornucopia of wildflowers will be in full bloom on the north and south slopes and the normally crispy Mediterranean chaparral will be verdant.

Mid-June weather can range from cool, dense, wet fog to soaring afternoon temperatures.

The DRTE 100 is in the Santa Ynez Mountain Range, one of the few ranges that runs entirely east to west. The rugged topography is steepest on the northern side, which boasts grassy potrero’s, Oak savannas and deep canyons with seasonal creeks that flow through dense Alder and Sycamore grottos. The south slopes are choked with dense chaparral, dramatic views of sandstone, Coldwater and Matilija formations, and the ridgeline traverses offer unmatched views of Santa Barbara, Goleta, Carpinteria and Ventura, as well as the Channel Islands Marine Sanctuary and the expansive Los Padres National Forest.

The DRTE 100 is an exceptionally difficult, ultimately memorable 100-mile trail running experience.

Click Image to Enlarge | Download full size course route map (PDF)