Live Chat I-270 MD Community Nearby Traffic Great Heron Wetlands (Landuse swamp) 2024-04-30 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Great Heron Wetlands (Landuse Swamp) Unionville, MD 5.19 Walkersville, MD 7.75 New Market, MD 8.94 Interstate highway exits close to Great Heron Wetlands (Landuse Swamp) Exit 55, i70 2.18 Exit 56, i70 2.37 Exit 54, i70 3.15 Interstate highways close to Great Heron Wetlands (Landuse Swamp) i70 map 2.18 i270md map 4.14 i81 map 40.15 State roads close to Great Heron Wetlands (Landuse Swamp) MD 144 map 1.44 US 15 MD map 2.26 MD 26 map 2.49