DENVER (CBS4) – The Colorado Department of Transportation is thinking about expanding service through the Rocky Mountains in Northern Colorado.

(credit: CBS)

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Officials say their Bustang service saw a 25 percent jump in ridership between July and November as compared to the same time last year.

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(credit: CBS)

The Summit Daily News reports the agency is considering a possible route between Frisco and Steamboat Springs.

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It already has a route from Denver to Glenwood Springs.