Mount Gretna Pennsylvania Traffic 2024-12-29 Roadnow Click for Real Time Traffic Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Mount Gretna Pennsylvania South Londonderry, PA 3.85 mi Quentin, PA 4.18 mi Cornwall, PA 6.04 miInterstate highway exits close to Mount Gretna Pennsylvania Exit 266, i76 3.43 mi Exit 1, i78 20.34 mi Exit 89, i81 20.34 miInterstate highways close to Mount Gretna Pennsylvania i76 map 3.43 mi i78 map 20.34 mi i81 map 20.34 miState roads close to Mount Gretna Pennsylvania PA 117 map 0.21 mi PA 241 map 2.67 mi PA 72 map 3.24 mi