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A quaint little town, shadowed by jagged peaks on the North Fork of the Skykomish River. Wooden sidewalks and paintless frame buildings once lined the short main street; it was a brisk mining center. A few historic sites, along with popular climbing cliffs, mark this worthwhile detour.
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The Sunset Mine was the largest of the old mines and famed as a man-killer. Amos D. Gunn opened a tavern here in 1890, secured a post office the next year, and platted the town in 1893, naming it after Mount Index. Gunn’s name was given to adjacent Gunn Peak. Besides bornite (a high-grade copper ore), gold, silver, antimony, molybdenum, and several arsenates were found in the vicinity.
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