The Tenmile Range and the Thin Mountain Air
Near Breckenridge, Colorado
The wall of jagged peaks rising to the west of town is the Tenmile Range, and it shapes everything about life in Breckenridge. The summits of the range are simply numbered, Peak One at the north end running down to Peak Ten in the south. The Breckenridge ski runs are carved across Peaks Six through Ten.
Standing over the whole range at the southern end is Quandary Peak, a true giant of the Rockies. Quandary rises to about fourteen thousand two hundred seventy-one feet, tall enough to be a fourteener, and it has become one of the most popular peaks of its class in Colorado, drawing hikers by the thousands each summer. The town itself sits high, at roughly nine thousand six hundred feet above sea level.
That altitude is not just scenery. The air here holds far less oxygen than most visitors are used to, and people arriving from lower ground often feel short of breath, tired, or headachy for a day or two while their bodies adjust. Just to the south, the Continental Divide crosses the range, the great spine of North America where the water on one side flows toward the Pacific and the water on the other flows toward the Atlantic.
In Breckenridge, the mountains are never in the background. They are the main event.
