Colorado | Interstate Highways | State Highways 1-97 | State Highways 100-470 | Main | NE State Line to US-385 | US-385 to SH-59 | SH-59 to SH-61 | SH-61 to I-76 | I-76 to US-138 | US-138 to SH-14 | SH-14 to SH-63 | SH-63 to I-76/US-34 Spur | I-76/US-34 Spur to SH-71 | SH-71 to SH-52 | SH-52 to SH-144 | SH-144 to US-34 | US-34 to I-76/US-34/SH-39/SH-52 | I-76/US-34/SH-39/SH-52 to I-76 | I-76 to I-76 … Continue reading U.S. Routes