Ptarmigan Pass (elevation 11,765 ft) is a high mountain pass in the Rocky Mountains of central Colorado in the United States.

Note: There are at least three separate mountain passes in Colorado named Ptarmigan Pass. This article concerns the one between Eagle County and Summit County.

It is located on the crest of the northern end of the Sawatch Range, along the border of Eagle and Summit counties, south of Vail Pass. The pass is traversed by a jeep trail that is passable by four-wheel drive vehicles and on foot. 2WD vehicles will only make it to the summit from the west; the east side is rocky and boggy at times. The trail connects Interstate 70 east of Vail Pass with the Eagle River Valley near Red Cliff.

39°29′35″N 106°15′12″W

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