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Boulder Dash at Pinesburg Quarry
Saturday, October 17, 2026Williamsport, MD5K – 5 Miles
Experience a truly unique running event at the Annual Boulder Dash, hosted within the rugged landscape of the Pinesburg Quarry in Williamsport, MD. This race offers runners of all skill levels the rare opportunity to traverse the grounds of a working quarry. For your safety, the quarry operations are paused during the event, ensuring a secure and focused environment for all participants. Whether you are a beginner or an advanced runner, you will enjoy a distinctive course that stands out from typical road races. Come explore this industrial setting and challenge yourself in a one-of-a-kind venue.
Races
Who's running this
View start listYou're early — the field is wide open
Nobody on the start list yet. Grab a bib, or share the race with someone who'd run it with you.
Frequently asked questions
Location
DirectionsPinesburg Quarry, 14932 Bottom Road, Williamsport, MD, 21795, US
