The Capitol Forest Trail Running Series offers a rugged test of endurance wrapped in the deep greens of southwestern Washington’s most expansive forest. Located just outside Tenino, this event threads through 15 to 25 miles of mixed terrain — a combination of dense fir and cedar forests, muddy singletrack, and rolling hills that push your legs and focus with an elevation gain averaging around 2,500 feet, depending on the course. Here, the forest itself actively engages runners; roots grip the soil beneath, slick and persistent after rain, while streams dart across the path, daring you to pick your footing quickly.

While the Chase courses vary year by year, expect trails that are technical without being punishing, requiring nimble footwork and strong pacing. The scent of damp earth and pine fills the air, while sunlight pockets peek through the canopy, spotlighting the forest floor’s ferns and moss. For those accustomed to city pavement or straightforward trails, this course demands respect — its natural obstacles are fierce but fair.

Strategically, timing the run early in spring or fall leverages cooler temperatures and drier underfoot conditions, enhancing both safety and enjoyment. Hydration is crucial; though streams weave through the route, filtering is recommended. Trail running shoes with solid tread will keep you anchored, while moisture-wicking layers help manage shifting weather.

Beyond the race itself, Capitol Forest is a stronghold of biodiversity. Deer trail quietly along the periphery, and birds of prey patrol from overhead. For adventurers keen on more than speed, brief detours to hidden viewpoints offer sweeping vistas of the Black Hills to the west.

This series is more than a race; it’s a conversation with the forest, a practical challenge wrapped in the thrill of outdoor immersion. Whether you’re pushing for your personal best or simply soaking in the invigorating woodland atmosphere, understanding the course’s character is key. Remember: The forest runs deep and alive beneath your feet, and preparation is your most valuable gear.