Great Marsh Mud Mosey

Welcome to the Great Marsh Mud Mosey

The Third Annual Great Marsh Mud Mosey will take place on April 11, 2026, featuring a 5Kish run throughout a very unique private property in Northern Chester County. The race proceeds will be donated to the Great Marsh Institute and ChesCo Search Dogs. The race and walk both start at 10:00 AM.

The Course

• Course Description: The course is relatively flat but will pass along through the marsh ponds on the property, alongside wooded boundaries past hundreds of acres of farmland and then into the muddy portion of the property.
• Finish Line: The last mile or so will be on a grassy surface to the finish line.
• Course Preview: Click on the link for a flyover of the course: Flyover Course Link.
• Runner Limit: The race/walk is limited to the first 120 runners.

Post Race Activities

• Food Options: We will have the Epicurean Garage food truck for those looking to grab a bite to eat.
• Beverage Supplies: Beer and spirits will be supplied by Stable 12 Brewing and Victory Brewing.
• Entertainment: We also have a DJ for some awesome tunes for the post-race activities.
• Demonstrations: ChesCo Search Dogs will be performing demonstrations upon the completion of the race.

Environmental Insights

We will have some Environmental Biologists available to discuss the beautiful property and the special animals and flora you might have just passed on your race.

Learn More

• ChesCo Search Dogs: To learn more about ChesCo Search Dogs, please check out their website: ChesCo Search Dogs.
• Great Marsh Institute: To learn more about the Great Marsh Institute, please check their website: Great Marsh Institute.

The Mud

While we can't promise a repeat of last year's mudfest as mother nature was very generous with lots of spring rain, if you would like to take a glimpse of one of the muddier sections, feel free to watch a camera we had set up on the course: Watch Here.

Pets

As this is a working farm and we will have the ChesCo Search Dogs on property, we ask that you do not bring your pets to the race.

Gear Check

This is a rain or shine event! Remember to dress for the event! It's called the Mud Mosey for a reason—almost guaranteed to get muddy! Please check this space for updates in case of inclement weather conditions.

Refund Policy

Kindly note that all registration fees are non-refundable, but check with your tax consultant should it be tax deductible.

Parking and Driving On-Site

Once you enter the property, follow all signs for parking. Please drive carefully as this is a narrow and gravel road. Keep your speed under 25 MPH to avoid damaging the road and your vehicle.

Race Information

For more details, visit the race page: Great Marsh Mud Mosey.