Patapsco Valley State Park · MD
Wood-Marr (HoCo Thru Trail)
Live · updated
Today
Workable day for mountain biking.
Today's best: mountain biking
Conditions
Score by activity
Hiking
Marginal conditions for hiking.
Trail running
Marginal conditions for trail running.
Mountain biking
Workable day for mountain biking.
Dog walking
Marginal conditions for dog walking.
Score breakdown
- · 82°F air — Within comfort range, outside ideal
- ✓ Trail: prime — No meaningful rain in the last 48 hours. Trail surface is dry and tacky — prime traction.
- − 42 min of daylight — You need at least 75 min with margin. Bring a headlamp or start tomorrow.
Trail facts
- Distance
- 3.61 mi
- Elevation gain
- 600 ft
- Surface
- mixed
Trailhead
Coordinates
39.3376, -76.8795 — MD.
Park
Part of Patapsco Valley State Park (official site →).
Peak nymphal tick activity — check yourself within 2 hours of leaving the trail.
Nearby Trails
Frequently Asked
How long is Wood-Marr (HoCo Thru Trail)?
Wood-Marr (HoCo Thru Trail) is a 3.61-mile route with 600 feet of elevation gain. 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 Wood-Marr (HoCo Thru Trail)?
Wood-Marr (HoCo Thru Trail) is mixed surface — sections of dirt, rock, and root that vary along the route. Today's mud rating, derived from recent precipitation and the surface type, is shown in the conditions panel above.
Who manages Wood-Marr (HoCo Thru Trail), and where do closure alerts come from?
Wood-Marr (HoCo Thru Trail) is in Patapsco Valley 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.