Live Chat I-70 Community Nearby Traffic CO 121 2024-04-30 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to CO 121 Denver, CO 4.83 Westminster, CO 7.57 Lafayette, CO 8.53 Interstate highway exits close to CO 121 Exit 225, i25 5.78 Exit 223, i25 5.97 Exit 228, i25 7.78 Interstate highways close to CO 121 i25 map 5.78 i270co map 13.30 i76 map 14.33 State roads close to CO 121 US 287 CO map 2.22 CO 128 map 3.01 CO 121 map 3.40