Stampede Pass serves as a critical mountain crossing along the border of Kittitas and King counties. This alpine corridor is defined by its deep infrastructure, featuring the notable Stampede Tunnel and the Lake Keechelus Snowshed Tunnel protecting transit routes along the shores of Keechelus Lake. Small settlements and seasonal outposts like Stampede, Whittier, and Martin are scattered throughout the forested terrain, while recreational destinations including the Alpental Ski Area and Kachess Resort utilize the high-elevation landscape. The wilderness character is preserved through the Wenatchee National Forest and Snoqualmie National Forest, with the Pacific Crest National Scenic Trail winding through the peaks. Water is a dominant element, from the headwaters of the Yakima River to smaller alpine features like Swamp Lake and Rock Rabbit Lakes.
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1901 · Snoqualmie Pass
USGS Topo · 1:125,000
1903 · Snoqualmie
USGS Topo · 1:125,000
1957 · Wenatchee
USGS Topo · 1:250,000
1961 · Snoqualmie Pass
USGS Topo · 1:62,500
1961 · Easton
USGS Topo · 1:62,500
1961 · Kachess Lake
USGS Topo · 1:62,500
1962 · Lester
USGS Topo · 1:62,500
1975 · Snoqualmie Pass
USGS Topo · 1:100,000
1989 · Easton
USGS Topo · 1:24,000
1989 · Stampede Pass
USGS Topo · 1:24,000