Mount Thomson

Mount Thomson is a 6,554 ft / 1,998 m mountain peak in the Cascades in Washington, United States. Based on peakery data, it ranks as the 603rd highest mountain in Washington and the 16342nd highest mountain in the United States. The nearest peaks are Alaska Mountain, Red Mountain East Peak, Huckleberry Mountain, Red Mountain, Lundin Peak, and Kendall Peak. Mount Thomson belongs to the Seattle Home Court 100, and the Mountaineers Snoqualmie Lodge Peaks peak lists. See the Mount Thomson map, 3D fly around, and the Mt. Thomson photos to get a better sense of the mountain.

Mount Thomson SUMMIT LOG peakery first ascent by abelbell

2 members report climbing or hiking to the summit, most recently on Sep 6, 2014. Below are trip reports and shared pictures from their climbs. Based on the summit log, the most popular climbing route and hiking trail to the summit is East Ridge.

Others who’ve summited Mount Thomson

  • abelbell

Routes Used trails & approaches

100% East Ridge


SNAPSHOTedit info


6,554 ft / 1,998 m


missing please add!

Height Rank Range



Washington, United States

Summited by

  • MangyMarmot
  • abelbell

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