Mason Neck · Fairfax County · VA
Great Marsh Trail is a 0.7-mile white trail near Mason Neck, in Fairfax County, VA. It climbs 4 ft and descends 15 ft, between 10 ft and a high point of 26 ft. The surface is asphalt. Mapped for hiking, trail running.
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Trail data © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP. Open the interactive map for routing, weather, and offline use.