Mount Jefferson/Jefferson Park Glacier

An intermediate mountaineering climb to the summit of Oregon's Mount Jefferson via the Jefferson Park Glacier with a gain of 5,897 feet. This is the second most climbed route on Mount Jefferson.

Driving Directions

Drive I-5 south through Portland (possibly bypassing Portland via I-205) to Salem.  Head east on Oregon SR  22, passing the Detroit ranger station (permits are self-issue at the trailhead). Proceed 10 mi east of Detroit (after milepost 60), and turn left on Whitewater Road (Forest Road 2243)  and take this 7.5 mi. to its end.


Hike the Whitewater Trail 1.5 mi to the intersection with the Jefferson Park Trail. Hike east 2.5 mi to the intersection with the Pacific Crest Trail, and up the tributary of Whitewater Creek to camping sites.

ascent Route

Ascend the east side of the Jefferson Park Glacier via the line of least resistance. Climb to a saddle between the main peak and a prominent point north of the summit. Climb a narrow ridge south to the summit.

Descent Route

Descend the climbing route or an alternate route via the Whitewater Glacier back to Jefferson Park.


Standard glacier gear.

  • Difficulty: Intermediate Mountaineering Climb
  • Length: 15.0 mi
  • Elevation Gain: 5,897 ft
  • 10,497 ft
  • USGS Mount Jefferson
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