Buttermilk Mountain Backyard Bash

Saturday, May 9, 2026 • Brunswick, ME
Registration Open
Register Now — From $20.00

When is Buttermilk Mountain Backyard Bash?

Buttermilk Mountain Backyard Bash takes place on Saturday, May 9, 2026 in Brunswick, ME.

What distances does Buttermilk Mountain Backyard Bash offer?

Buttermilk Mountain Backyard Bash offers 1 event: Buttermilk Mountain Backyard Bash.

Event Distance Price
Buttermilk Mountain Backyard Bash 50.0 mi $20.00 Register

How much does Buttermilk Mountain Backyard Bash cost?

Registration for Buttermilk Mountain Backyard Bash starts at $20.00.

Where is Buttermilk Mountain Backyard Bash held?

Buttermilk Mountain Backyard Bash is held in Brunswick, ME at Kate Furbish Preserve East.

About Buttermilk Mountain Backyard Bash

A backyard-style run-til-you-stop ultra race at Kate Furbish Preserve East in Brunswick, ME.

Join us for a long, fun, hard day of running on coastal Maine trails on May 9, 2026! Sample some of the finest single and double track Buttermilk Mountain (elevation 121ft) has to offer. Nutrition: not provided. PFAS: guaranteed. Stoke: High.

What is a backyard race? Run a 4.17 mile lap on the same course every hour on the hour. If you don't finish a loop within the hour, you are out of the race. 12 hour cutoff time for a maximum of 50 miles of running.

The race is open to all experience levels! Run as many or a few loops as you like. Whether you're a lactate demolishing machine planning to finish the full 50, or a casual trail runner who wants to put in a few hours outside on a beautiful day, this event is for you. 

The race course is about a 12 minute drive from Bowdoin's campus.

The $20 registration fee will go towards race expenses, and the rest will be donated to Preble Street nonprofit. If the registration fee poses a financial barrier to your participation, email tmooney@bowdoin.edu & fperez@bowdoin.edu.

See you there. 

Register Now — From $20.00
Register for Buttermilk Mountain Backyard Bash
From $20.00
Register Now