Columbia · Howard County · MD
Old Guilford Road (closed) is a 0.1-mile easy (green) trail near Columbia, in Howard County, MD. It climbs 16 ft and descends 8 ft, between 259 ft and a high point of 277 ft. The surface is fine gravel. Mapped for hiking, trail running.
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Trail data © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP. Updated 2026-07-26. Open the interactive map for routing, weather, and offline use.