Pratt Mountain via Olallie Lake

Ian and I parked at the trailhead for Pratt Lake and Granite Mountain and headed up the trail towards Olallie Lake. At the pass between Pratt Mountain and point 5566 (West Granite Mountain) we headed NW up the ridge to Pratt Mountain. The ridge was pleasant, just a little brushy, with some large granite boulders that could be scrambled in dry weather or easily avoided otherwise. The last couple hundred feet of the ridge before the summit was a boulder field, which was very unpleasant with only 6 inches of snow.

On the descent we went down the SW side of the mountain, right across another nasty, slippery boulder field which eventually led us to the pleasant meadow land east of Rainbow Lake. We met the trail here and followed it back to the trailhead.

The slick boulder fields were the only difficulties. This trip would be best either in dry conditions or when there is a good snowpack to cover the boulder fields.

  • Date:
    2005/02/05
    Round-trip distance:
    12 miles
    Elevation gain:
    3,390 feet
    Trip type:
    scramble
    USGS quads:
    Bandera, Snoqualmie Pass
    In:
    Middle Fork Snoqualmie Drainage, South Fork Snoqualmie Drainage
    Car-to-car:
    6 hours 57 minutes
    • 13 minutes driving from Lower Queen Anne to Mercer Island Park and Ride
    • 40 minutes driving from Mercer Island Park and Ride to Pratt Lake trailhead
    • 3 hours 32 minutes ascending from Pratt Lake trailhead to summit of Pratt Mountain
    • 3 hours 4 minutes descending from summit of Pratt Mountain to Pratt Lake trailhead
  • Pratt Mountain map
    Pratt Mountain map

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