Gambrill State Park · MD
Green Ash Trail
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.
Live · updated
Today
Skip the mountain biking plan today.
Today's best: mountain biking
Conditions
Score by activity
Hiking
Skip the hiking plan today.
Trail running
Skip the trail running plan today.
Mountain biking
Skip the mountain biking plan today.
Dog walking
Thunderstorms in today's forecast — dogs panic and trails become dangerous.
Score breakdown
- · 88°F air — Within comfort range, outside ideal
- − Thunderstorms — Get off exposed ridges before they arrive
- ✓ Trail: prime — No meaningful rain in the last 48 hours. Trail surface is dry and tacky — prime traction.
Trail facts
- Distance
- 2 mi
- Elevation gain
- 0 ft
- Surface
- dirt
- Difficulty
- moderate
Trailhead
Coordinates
39.4656, -77.4908 — MD.
Park
Part of Gambrill State Park (official site →).
Peak nymphal tick activity — check yourself within 2 hours of leaving the trail.
Nearby Trails
Frequently Asked
How long is Green Ash Trail?
Green Ash Trail is a 2-mile route with 0 feet of elevation gain — moderate — some sustained climbing or technical sections; expect to work for it but no specialized skills required. The trail facts panel on this page lists distance, surface, and access tags as they appear in OpenStreetMap.
What's the trail surface like at Green Ash Trail?
Green Ash Trail is natural dirt singletrack — soft underfoot, holds water, slow to dry after rain. Today's mud rating, derived from recent precipitation and the surface type, is shown in the conditions panel above.
Who manages Green Ash Trail, and where do closure alerts come from?
Green Ash Trail is in Gambrill State Park, which is managed by the managing agency. Closure and advisory data on this page comes from the agency. Always confirm against the park's own page before driving — emergency closures can post faster than scrapers refresh.