Lace up your trail shoes for the 29th annual Mac Forest Trail Run on March 14, 2026, a challenging and scenic adventure awaiting runners in Corvallis, Oregon. This highly anticipated event, a highlight of the Corvallis Trail Series, offers both a 15K and a 5K course, guiding participants through the beautiful McDonald Forest, managed by Oregon State University. You'll navigate a dynamic mix of single-track trails and logging roads, with the 15K route featuring approximately 1450 feet of elevation gain, promising a rewarding test of endurance.

Runners consistently praise the Mac Forest Trail Run for its engaging terrain and supportive atmosphere. While typical race day conditions in mid-March bring highs around 55F and lows around 36F with a 20% chance of precipitation, be prepared for potentially wet and muddy trails, which only add to the adventure. Should the weather permit, you'll be treated to breathtaking scenic views of the Cascades, the Coast Range, and the Soap Creek Valley. The start and finish lines at Peavy Arboretum offer a beautifully forested setting and a relaxed, community-focused vibe, with registration and bib pickup beginning at 7:30 AM before the 15K start at 9:00 AM and the 5K at 9:30 AM.

Two aid stations, located at Cronemiller Lake and the Cap House, will support 15K participants, though runners are reminded this is a cupless event and to carry their own water bottles. Beyond the personal challenge, the Mac Forest Trail Run holds a special place in the community, with proceeds benefiting local high school cross-country athletes and the Oregon Running Foundation, fostering youth development through the power of running. This early-season race is renowned for being an enjoyable experience for both seasoned trail runners and newcomers, often inspiring participants to explore future trail events.