Gambrill State Park

White-blazed one-mile loop through oak forest at Gambrill, an easy, family-friendly walk near the High Knob picnic area and its stone overlook shelters.

Red-blazed connector loop linking Gambrill's campground with the wider trail network. A short, fairly easy woodland walk on Catoctin Mountain that suits families.

Black-blazed trail climbing Catoctin Mountain's wooded slopes to the High Knob overlooks, with sweeping views east over Frederick and west across the Middletown Valley.

Green-blazed loop with several steep slopes and little level ground, making it Gambrill's most challenging trail. It threads rocky, forested terrain on the flanks of Catoctin Mountain.

Gambrill's longest trail, a yellow-blazed loop that mostly follows the Catoctin Mountain ridgeline from the High Knob area to the park's northern boundary, with a spur to a west-facing rock overlook of the valley.

The yellow-blazed Catoctin Trail, a roughly 26-mile point-to-point route, begins at Gambrill State Park and runs north through the Frederick watershed to Cunningham Falls and Catoctin Mountain Park.