Boulder Dash at Pinesburg Quarry

Boulder Dash at Pinesburg Quarry is a running event hosted by Martin Marietta in Williamsport, Maryland. It offers a 5 Mile Challenge, a Family Friendly 5K, and a 1 Mile Fun Run for all levels. The 1 Mile Fun Run and 5K travel on rolling roads and packed gravel around the quarry; the 5 Mile goes into the main quarry and the old quarry, with uneven and rocky sections.

This is a unique race that goes around a working quarry (not operational on race day). Registrants receive a cotton/poly shirt, custom bib and finisher medals, and access to photos. It is chip-timed with live results. Visit the organization's website for the most recent information.