MammothMarch Delaware Valley is back!
After four sold out events in a row, we are thrilled to be back at Fair Hill in northeast Maryland for MammothMarch Delaware Valley 2027!
Once one of the largest private land holdings in the east, Fair Hill Natural Resources Area – known for its 5,656 acres of pristine fields, woodlands and natural beauty – is once again all yours to conquer.
Join us on May 22, 2027, push your limits and reach new heights all while enjoying peaceful nature at its best.
Bordered by Pennsylvania to the north and less than half a mile west of Delaware, Fair Hill was previously owned by William duPont, Jr., an avid equestrian rider who acquired the farmland to enjoy riding as well as fox chasing. Today, it’s a picture-perfect spot for one of our most popular 20-mile hikes.
Master the challenge and spend a beautiful day hiking 20 miles at a stretch. Getting your finisher medal, you will be exhausted, but proud and happy... as well as part of our amazing community of nature-lovers, hikers and MammothMarch addicts!
Signing up for the first time? Take a look at past events and what our participants say: https://www.mammothmarch.com/reviews
Secure your ticket now and take a look at what's included:
Please note that all prices are INCLUSIVE of mandatory charges, items, and fees.
Registration fees
Where pricing applies, shown amounts include mandatory charges, items, and fees.
MammothMarch Delaware Valley
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Spend a beautiful day hiking and finish 20 miles in 8 hours
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Register for MammothMarch Delaware Valley$73.71
SUPER EARLY BIRD
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$84.24
EARLY BIRD
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$94.77
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$105.30
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$115.83
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Contact information
- Event contact
- MammothMarch Event Team
- Website
- Visit website
