The Guanella Pass Scenic Byway is a National Forest Scenic Byway and Colorado Scenic and Historic Byway located in Clear Creek and Park counties, Colorado, USA. The byway traverses Guanella Pass at elevation 11,670 feet (3,557 m) in Arapaho and Pike national forests. The pass lies above timberline surrounded by Grays Peak at elevation 14,278 feet (4,352 m), Torreys Peak 14,275 feet (4,351 m), Mount Blue Sky 14,271 feet (4,350 m), and Mount Bierstadt 14,065 feet (4,287 m). The byway passes through the Georgetown–Silver Plume Historic District, and provides access to the Georgetown Loop Historic Mining & Railroad Park and the Georgetown Loop Railroad. The byway is renowned for its spectacular autumn colors during aspen color change from September 10 through October 10 each year.

Quick Facts Route information, Length ...

Guanella Pass Scenic Byway
Route information
Maintained by CDOT
Length	22 mi[1][2] (35 km)
Existed	1991–present
Major junctions
North end	I-70 Exit 232 Georgetown
South end	US 285 Grant
Location
Country	United States
State	Colorado
Counties	Clear Creek and Park counties
Highway system
Scenic Byways National National Forest BLM NPS Colorado State Highway System Interstate US State Scenic

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• Georgetown, Colorado
• The Georgetown Loop Railroad
• Georgetown from the Guanella Pass Scenic Byway
• The Sawtooth and Mount Bierstadt from Guanella Pass

• History Colorado