Black River Trail Classic

October 18, 2025

Come explore the trails of Black River State Forest.

Location

Black River State Forest

Millston, WI

Races start and finish in the Smrekar Lot.

Use this link to get driving directions right to the parking lot.

If you're at the State Forest headquarters or the Castle Mound campgrounds you're going the wrong way!

About the Forest

Established in 1957, the Black River State Forest encompasses approximately 68,000 acres of public land in Jackson County Wisconsin. The landscape is largely due to glaciation during the Ice Age which is responsible for the formation of the buttes, hills, knolls, ridges and pediments that can be found in the forest. Scenic overlooks can be found at several locations along the trails that run through woodlands and rolling terrain.

Registration

The 2025 registration will be handled by UltraSignup.

10k Entry Fee: ~~$45~~ $30

25k Entry Fee: ~~$65~~ $50

50k Entry Fee: ~~$80~~ $65

85k Entry Fee: ~~$130~~ $115 (Details)

* Prices are before sales tax and UltraSignup platform fees

🐥 Early Bird Discount 🐥

Discounted registration fees end 9/1/25.

Keeping the Traditions

The 9th running of the Black River Trail classic brings back all the things you've come to love about the race. We're excited to share the forest with you and can't wait to welcome you to one of our most favorite places in the state!

What to expect

Black River Trail Classic winter hat (beanie) for all registrants.
Collectable and customizable hand crafted wooden finisher medals.
Personalized Bib (If you register before 9/1/24)
One hooded sweatshirt and commemorative patch when you finish your first 85k. Each subsequent finish you'll receive a patch to add to the sweatshirt.
Hot food at the finish line.
Pies. Eat them all.
Back by popular demand. Chapstick!
Extremely well marked courses.
The views up on the ridge.
All the fall colors.

NEW85k Details

The 85k distance is a combination of ALL the races. You'll start early and run the 10k course. When you get back from your warmup you'll head out on the 50k course. All that's left is to head back up the ridge and finish your 25k cool down. It really is the best way to familiarize yourself with the Black River Trail Classic and become a local legend of the state forest. There's a 12 hour cut-off for the 85k.

We're keeping the aggressive 12 hour cut-off. We've had only 11 finishers since 2022 and we're ok with that. If you're looking for a challenge, if you're looking to prove something to yourself, if you're looking to get out of your comfort zone, why not give it a try?

Travel and Lodging

Driving Directions

On site camping

There are campsites available at Black River State Forest. You can check out all the camping options on the Black River State Forest website.

Area Hotels

There are a number of hotels close to Black River State Forest. There is no official race hotel, however, most are available at very reasonable rates.

Here's a link to nearby hotels.

Race Updates

No updates for 2025 yet.

Registration Changes

If you are registered and need to make changes. Just send an email and we'll take care of it.