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MammothMarch Delaware Valley

location_on

Elkton, Maryland, United States

calendar_today 30 May, 2026

directions_run Running

sell $63.18

About the Event

The MammothMarch Delaware Valley takes place on Saturday, 30 May 2026 at 6:45 AM EDT at Fair Hill State Natural Resources Management Area in Elkton, Maryland. This 20-mile hiking challenge must be completed within 8 hours. The event is currently sold out, but a waitlist is available. Fair Hill spans 5,656 acres of pristine fields and woodlands, bordered by Pennsylvania to the north and less than half a mile west of Delaware. Originally part of William duPont Jr.'s estate, this natural area offers a picture-perfect setting for one of the most popular 20-mile hikes.

Event Detail	Information	Notes
Distance & Time Limit	20 miles in 8 hours	Hiking challenge
Location	Fair Hill Natural Resources Area, Elkton, MD	5,656 acres
Start Time	6:45 AM	Saturday, 30 May 2026
Status	Sold out	Waitlist available

After three consecutive sold-out events, MammothMarch returns to Fair Hill. The terrain includes pristine fields and woodlands. Past participant reviews are available at www.mammothmarch.com/reviews. For updates on future editions or to join the first-come, first-served waitlist, contact the MammothMarch Event Team via the event website. Enhanced refund protection information is available in the event FAQs.

Races Offered

MammothMarch Delaware Valley

May 30, 2026

straighten

Distance — 20mi

terrain

Type — Running

timer

06:45

sell

$63.18

Weather History

These values represent the 3-year monthly averages for May in Elkton.

thermostat Temperature

12.4° / 22.5°

wb_sunny Feels like

10.6° / 20.9°

light_mode Avg sunshine hours

9h 49m

water_drop Avg rainfall

3.8 mm

ac_unit Avg snowfall

—

air Avg wind speed

10.6 km/h (Light breeze)

opacity Sweat loss rate

Moderate

terrain Course conditions

Firm and slightly soft

sunny Max UV Index

High (6.0)

humidity_mid Humidity

70.3%

wb_twilight Sunrise

05:48

nightlight Sunset

20:11

About Elkton

Learn more about the host city, Elkton.

Elkton is a town in and the county seat of Cecil County, Maryland, United States. The population was 15,776 at the 2020 census, up from 15,443 in 2010. It was formerly called Head of Elk because it sits at the head of navigation on the Elk River, one of the five tributary rivers that flow into the north of the Chesapeake Bay, east of the Susquehanna River and North East River, and north of the Bohemia River, and Sassafras River.