Live Chat I-10 Community Nearby Traffic McDonald Observatory (Tourist attraction) 2024-05-08 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to McDonald Observatory (Tourist Attraction) Alpine, TX 41.52 Balmorhea, TX 44.85 Marfa, TX 50.92 Interstate highway exits close to McDonald Observatory (Tourist Attraction) Exit 192, i10 47.09 Exit 206, i10 47.96 Exit 209, i10 49.56 Interstate highways close to McDonald Observatory (Tourist Attraction) i10 map 47.09 i20 map 55.77 i25 map 320.61 State roads close to McDonald Observatory (Tourist Attraction) TX 118 map 2.28 TX 17 map 9.01 TX 166 map 9.49