Boulder Dash at Pinesburg Quarry
About this race
Martin Marietta at Pinesburg Quarry is proud to host the Annual Boulder Dash at Pinesburg Quarry! This event will be held in and around the Pinesburg Quarry in Williamsport, MD. This event is designed for all levels from beginners to advanced runners. Enjoy a unique race that allows you to run around a working quarry (for safety purposes the quarry will not be operational during the event)!
Pick your distance
Running
5 Mile Challenge
Family Friendly 5K
1 Mile Fun Run
Typical race-day weather
Based on 5 years of Open-Meteo archive data for this event's race dates in Williamsport, plus the 3 days either side.
The sun rises at 7:23 AM and sets at 6:29 PM local time (EDT) in Williamsport on October 17, 2026 — 11h 05m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
Reviews
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Results — Boulder Dash at Pinesburg Quarry
Other races near Williamsport
Different organizers, within 40 miles, in the next three months
Tie Dye Run
Steps Towards Healing for Mental Health Awareness 5K
Spring Mills Rotary Ready, Set, Glow 5K Fun Run and Tot Trot
Gingerbread Dash
🏃 Plan Your Next Race in Williamsport
Find upcoming events by distance:
- Williamsport 5K Races 3 races
- Williamsport Running Calendar 2026 5 races
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 5 Williamsport events
Spotted something wrong? Tell us and we'll fix it.