Conquer the Single Track at the Lumberjack 100

A True Test of Michigan Grit

The Lumberjack 100 is a legendary endurance challenge set deep within the heart of Michigan’s Manistee National Forest. This isn't your average fire-road cruise - it is a high-speed, technical journey through the iconic Big-M Ski Area. The course is designed to challenge your mental focus and physical stamina as you navigate a relentless loop of pure Michigan single track. Expect a blur of green as you weave through dense forest, tackling terrain that demands constant power and unwavering concentration. Whether you are a pro athlete looking for the podium or a dedicated rider aiming to survive the distance, this race is about grit, community, and the raw beauty of the Northwoods.

What to Expect

Relentless Single Track - Approximately 90% of the course is narrow, winding trail that keeps you fully engaged from start to finish.
Physical Demands - Prepare for a vertical challenge with over 9,000 feet of total elevation gain across the full distance.
Variable Terrain - The course features mostly fast-rolling hard pack trail, but stay sharp for occasional sandy sections that test your handling.
Total Concentration - The trail offers constant twists and turns that require quick reflexes and steady power output.
Endurance Format - A multi-lap structure that allows you to dial in your lines while testing your pacing and nutrition strategies.

Course Description

The race utilizes a massive 33-mile loop through the Big-M Ski Area. Racers will complete three full laps to reach the 100-mile mark. The elevation profile is deceptive - while there are no massive mountain peaks, the constant "roller coaster" nature of the Michigan terrain adds up to a staggering amount of climbing. This course is for those who love the flow of single track but respect the difficulty of sustained effort. If you are expecting easy fire-road coasting, look elsewhere - this is a pure mountain biker's race.

Distance	Terrain Type	Elevation Gain
33-Mile Loop	90% Single Track	Approx. 3,000 ft per lap
100-Mile Total	Hard Pack & Sand	9,000+ ft total

Event Highlights

The Vibe - Experience an adrenaline-fueled atmosphere where the mountain bike community comes together to celebrate trail culture in its purest form.
Post-Race Celebration - Refuel after your grueling journey through the forest with a hearty post-race meal provided to all competitors.
Blackrocks Brewery - Relax and recover with cold refreshments from Blackrocks Brewery, a staple of the Michigan cycling scene.
Awards and Recognition - Celebrate the top finishers and those who found victory in simply crossing the finish line during the awards ceremony.
Support and Amenities - The loop format provides excellent access for support, ensuring you stay fueled and focused as the laps add up.
Nature-Connected - Immerse yourself in the deep woods of the Manistee National Forest, where the trail becomes a green blur of pure speed.

Lumberjack 100 Race Day

Frequently Asked Questions

What kind of trail conditions should I expect on the Lumberjack 100 course?

Prepare for a 33-mile loop that is 90% Michigan-style singletrack, featuring mostly hard-pack dirt with occasional sandy sections. The terrain is fast-rolling but demands total concentration as the trail winds through the Manistee National Forest with very little fire-road coasting.

How much elevation gain is involved in the full race?

Over the course of three laps, riders will tackle more than 9,000 feet of total elevation gain. The relentless "roller coaster" nature of the Big-M trails ensures your legs are constantly working without many long descents to recover.

Is this race suitable for beginner mountain bikers?

While the trails are not overly technical, the sheer distance and elevation make this a grueling endurance event. We recommend this race for riders who have high fitness levels and experience handling tight singletrack for 6-12 hours at a time.

What type of bike and tires are recommended for the Big-M trails?

A lightweight cross-country mountain bike (hardtail or short-travel full suspension) is the ideal tool for this course. Most riders prefer fast-rolling tires with enough side knob to navigate sandy corners and maintain grip on the hard-pack forest floor.

How does the lap format work for support and fueling?

The race consists of three 33-mile laps, each starting and ending at the Big-M Ski Area staging area. This layout is perfect for self-support, as you can set up a personal pit area to refuel, swap hydration packs, or perform mechanical work between each loop.

What happens after I cross the finish line?

Once you survive the 100 miles, you can enjoy a hard-earned post-race meal and refreshments from Blackrocks Brewery. The awards ceremony takes place at the Big-M staging area - check the event website for the latest details on ceremony times.

Michigan Cycling Events

Events in Michigan

PIT ★ XCO

Lumberjack 100

Marquette Trails Festival