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I-25 is the North-South Corridor and I-70 is the East-West route.
Interstate 25, Interstate 70, and Interstate 76 are the Interstates which run into or through Colorado. I25 runs north to south from Wyoming to New Mexico, while I70 runs east-west from Kansas to Utah.

Major US Highways include US6, US36, US50, US40, US287, and US6/CO9.

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11y ago

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