Mammoth Pennsylvania Traffic 2024-12-13 Roadnow Click for Real Time Traffic Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Mammoth Pennsylvania Grapeville, PA 1.77 mi Jeannette, PA 2.07 mi Penn, PA 2.95 miInterstate highway exits close to Mammoth Pennsylvania Exit 67, i76 5.11 mi Exit 75, i76 9.75 mi Exit 58, i70 10.25 miInterstate highways close to Mammoth Pennsylvania i76 map 5.11 mi i70 map 10.25 mi i79 map 41.86 miState roads close to Mammoth Pennsylvania US 30 PA map 0.04 mi PA 66 map 1.45 mi PA 136 map 3.42 mi