Gambrill State Park Professional Review and Guide
"Gambrill State Park protects the lower third of the Catoctin Mountain chain. The Catoctin Trail, one of Maryland's premiere long-distance footpaths, begins here. The park and its trails date back to civic-minded residents of Frederick, Maryland, who bought the land for protection and recreation. It is a tradition that continues today with active involvement in trail maintenance by Frederick-area hikers, mountain bikers, and equestrians.
At 7.4 miles, this is the longest trek that can be pieced together through the park. With so many interconnecting trails, however, options abound for making this as long or as short as time and energy permit."