Coloradans heading into the mountains to bask in the fall colors this weekend should plan for a very slow drive surrounded by thousands of their fellow leaf-peepers, according to state transportation officials.

Friday through Sunday will likely be some of the busiest travel days of the season as folks flock to higher elevations to enjoy the changing leaves , Colorado Department of Transportation officials said Thursday.

Heavy traffic, significant delays and major backups are expected along the Interstate 70 mountain corridor, along with “extreme congestion” on U.S. 285 between South Park and Denver as people travel to Kenosha Pass.

CDOT officials tracked a peak of 3,000 vehicles per hour passing through the Eisenhower Johnson Memorial Tunnel during the same weekend in 2024, and road

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