Mount Persis

Mount Persis is a moderate snow and/or rock scramble with 2,800 feet of elevation gain in a little over two miles. The final ridge line and summit offer wide views of the west flank of Mount Index and the valley of the Skykomish River.

Ascent Route

The boot trail which follows the west ridge of Mount Persis is barely visible from the dirt road and small parking area. It ascends steeply in an easterly direction through newly planted trees, with mud, roots and rocks to negotiate. Once the main north-south ridge of Persis is reached, traverse south, skirting below Point 5,017 and eventually reaching a flat area with tarns. Pass below the summit and ascend from the south.

Under snow conditions stay back from the ridge top and north side as large cornices may exist.


If it is not possible to drive to the trail head because of snow or the condition of the road, the distance and elevation gain are considerably more, depending on where you park.

  • Difficulty: Strenuous 2, Technical 2, Winter Scramble
  • Length: 4.0 mi
  • Elevation Gain: 2,800 ft
  • 5,464 ft
  • USGS Index
  • USGS Gold Bar
  • Red Marker
    47.797604, -121.639531
    47.7976043471 -121.639530659
  • Red Marker
    47.790080, -121.611013
    47.7900795769 -121.611013412

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