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Cook Forest 25k Trail Challenge

calendar_today 15 Aug, 2026

directions_run Running

sell $60.00

Cook Forest 25k Trail Challenge

About the Event

The Cook Forest 25K Trail Challenge returns to Cooksburg, Pennsylvania on August 15th, offering runners a rugged yet rewarding journey through the ancient woods of Cook Forest State Park. Since its inception in 2018, this event has become a beloved tradition among trail running enthusiasts across Pennsylvania and beyond. Nestled within the park's dense evergreen forests along the Clarion River, the race not only tests physical endurance but also immerses participants in some of nature’s most stunning landscapes.
On race morning at around 7am, temperatures hover between 65°F to 70°F, with a UV index reaching high levels. The air is crisp and refreshing as runners gather near Shelter 2 for the start line, which sits along Forest Road Vowinckel in Cooksburg. With towering trees casting early morning shadows across the trails, participants are greeted by a serene yet energizing atmosphere that sets the tone for an unforgettable day.
The Cook Forest 25K Trail Challenge has grown steadily since its debut, attracting hundreds of runners each year who come to experience both the natural beauty and community spirit of this unique event. Over the years, it has raised funds for various local conservation initiatives aimed at preserving these pristine woodlands for future generations. The race is more than just a run; it’s an opportunity to connect with nature and fellow trail lovers in one of Pennsylvania's most revered outdoor spaces.
The course itself winds through over 17 miles of interconnected trails within Cook Forest State Park, presenting runners with varied terrain that includes steep climbs up Seneca Trail near the historic Fire Tower. This initial ascent is followed by stretches alongside the cool waters of the Clarion River and shaded paths along Tom's Run where temperatures remain consistently cooler throughout the day. Three well-placed aid stations manned by local high school cross country teams provide essential hydration and energy boosts, ensuring runners are prepared for every challenge.
Weather conditions on race day typically feature firm yet slightly soft trail surfaces due to morning dew followed by sunshine later in the afternoon. UV protection is highly recommended given the expected index of 7 (high). The combination of cool early mornings with warm afternoons creates an ideal environment for endurance testing while still maintaining a comfortable overall temperature range.
Cook Forest 25K
25K  •  Start: 09:00:00  •  Fee: $60.00

Registration for the race is available through [https://ultrasignup.com/register.aspx?did=134440](https://ultrasignup.com/register.aspx?did=134440). Participants can register online or pick up their packets at Shelter 2, located within Cook Forest State Park on the morning of August 15th from 7:45 to 8:45. The race fee is set at $60.00 for runners participating in the 25K distance.
For those registering day-of or picking up packets early on race morning, be sure to bring a valid form of ID and proof of payment if applicable. Start location address is 2604 Forest Rd. Vowinckel, PA 16233 (GPS coordinates: 41.34609 N, 79.21845 W). Age requirements are set at participants must be at least 18 years old to participate.
The Cook Forest 25K Trail Challenge in Cooksburg, Pennsylvania on August 15th is a testament to the enduring allure of trail running and its ability to foster strong community bonds among runners. This race offers more than just an opportunity for athletic achievement; it's also a celebration of one of Pennsylvania’s most cherished natural wonders, making every step worthwhile for those who love challenging terrain and breathtaking scenery alike.

Races Offered

Cook Forest 25K

Aug 15, 2026

straighten

Distance — 25K

terrain

Type — Running

timer

09:00

sell

$60.00

Weather History

These values represent the 3-year monthly averages for August in Cooksburg.

thermostat Temperature
15.3° / 25.6°
wb_sunny Feels like
15.1° / 25.4°
light_mode Avg sunshine hours
11h 0m
water_drop Avg rainfall
2.8 mm
ac_unit Avg snowfall
air Avg wind speed
9.2 km/h (Light breeze)
opacity Sweat loss rate
High
terrain Course conditions
Hard and dry surface
sunny Max UV Index
High (7.0)
humidity_mid Humidity
77.2%
wb_twilight Sunrise
06:27
nightlight Sunset
20:13

About Cooksburg

Learn more about the host city, Cooksburg.

Scenic view of

Cooksburg is an unincorporated community in Clarion and Forest counties, Pennsylvania, United States. The community is located on the north bank of the Clarion River at the Pennsylvania Route 36 bridge, 12.3 miles (19.8 km) northeast of Clarion. Cooksburg has a post office with ZIP code 16217.

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