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Delaware Valley

Saturday, June 17 | Fair Hill Natural Resources Management Area

MammothMarch is coming to Fair Hill Natural Resources Management Area in northeast Maryland! 


Known for its 5,656 acres of pristine fields, woodlands and natural beauty, Fair Hill makes for a picture-perfect spot to host our 20-mile MammothMarch in the Delaware Valley. 


The Natural Resources Management Area is bordered by Pennsylvania to the north and less than half a mile west of Delaware. Once one of the largest private land holdings in the east, Fair Hill was formerly owned by William duPont, Jr., an avid equestrian rider who acquired the farmland as a means to enjoy riding as well as fox chasing. Now it's all yours to conquer! 



GPS to our main event venue: 4640 Telegraph Rd, Elkton, MD 21921

Our Participant Guide with all you need to know:

The route:

AllTrails link:

GPX file:


Time & Location

Saturday, June 17, 2023, 7:30 AM

Fair Hill Natural Resources Management Area, 4640 Telegraph Rd, Elkton, MD 21921

Local Partners

At a glance


Date: Saturday, June 17, 2023


Distance: 20 miles in 8 hours

There is no timekeeping, there are no failures, we only recognize the incredible courage it takes to rise to our challenge. Every participant completing the distance will be awarded with their finisher medal and considered a winner!


Starting time: Several starting slots available from 7:30 a.m.

You can choose from specific time slots with limited capacity when signing up. This ensures the most remote hiking experience as a maximum of 5 people will cross the starting line at the same time. The first hikers will start as early as 7:30 a.m. with the majority coming back in just about 8 hours. However, we will have our finish line open for the ones that need a bit more time.


Venue (start/finish):

Fair Hill Natural Resources Management Area/Cecil County Fair, 4640 Telegraph Rd, Elkton, MD 21921


Parking: Complimentary parking will be available on site


Aid/refreshment stations: There are water stops and aid stations along the route (approximately positioned every 5-7 miles apart) providing toilets, food and drinks for all participants. These refreshments are included in the cost of your ticket. The refreshments will vary between refreshment stations, providing water, coffee, tea isotonic drinks, fruits, cereal bars.

Certificates: All finishers will receive their personalized certificate after crossing the finish line. For the ones who drop out, we will issue certificates stating the mileage covered.


Finisher medal/wall of fame: For all participants finishing MammothMarch.

Merchandise: Our 2023 merchandise collection can be viewed right here: Pre-orders are available until around three weeks before the event, but we will also have merchandise on site (while stocks last).


Route: The single-circuit loop covers 20 miles of scenic trails inside the beautiful and remote Fair Hill Natural Resources Management Area. The final route will be made available around 2 weeks prior to the event.

Total elevation gain: Around 1,700 ft.

Terrain: Mainly unpaved hiking trails, dirt trails, forest floor, gravel paths, open fields.

What are you waiting for? Click here to sign up for the adventure of a lifetime.


Please check out more details in our FAQ section or send us an e-mail  at

Please note that the route is preliminary and may be adjusted due to weather issues, official directives and/or organizational matters. The route will be marked 1-2 days prior to event day. Should we notice parts of the route being inaccessible, extremely wet/muddy we will of course adapt it to local conditions at short notice.

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