Gambrill SP

Gambrill State Park, together with the adjoining Frederick Municipal Forest near Frederick, Maryland, is the annual home of QOC's Rogaine, a score-orienteering event rather than a standard course-based meet.

The terrain is hilly and includes areas of tough, rocky ground, along with patches of mountain laurel that are generally passable, and a wide network of trails also used by mountain bikers. The map is based on LIDAR data and isn't as thoroughly field-checked as QOC's standard orienteering maps, though its contours are reliable. Gambrill Park Road and Hamburg Road, both carrying fast-moving traffic with no shoulder, cross the event area and are marked out of bounds for travel, though crossing them is fine with care. The event area typically spans from the High Knob section of the park down through Rock Run and out into the surrounding forest, with checkpoints scattered across the terrain rather than a fixed course; participants plan their own route to collect as many points as possible within a set time limit, commonly 3 to 8 hours.

Because it's a long-format, self-navigated event with no set course, the Gambrill Rogaine is not aimed at beginning orienteers; it draws experienced navigators and hikers comfortable planning their own route over rugged terrain, with both a shorter, easier option and a longer, more demanding one offered each year. Given the terrain, QOC partners with an on-site emergency medical response service here as an added safety precaution, and cell coverage can be spotty in parts of the forest.

Gambrill State Park charges a per-vehicle entrance fee. Parking is near the park's pavilions and the Visitor's Center, with an additional lot near the park entrance for overflow; some years use a shuttle to a remote start point well into the forest. Leashed dogs are generally allowed, though the rocky terrain isn't ideal for them.