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Siskiyou Pass

Highest Elevation on Interstate 5

Mountain Pass in Cascade-Siskiyou NM near Ashland, OR

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Siskiyou Summit (also Siskiyou Mtn. Summit; also referred to as Siskiyou Pass) is a summit (high point) on Interstate 5 (I-5) in the U.S. state of Oregon. It is distinct from Siskiyou Pass, which is a nearby, historical mountain pass. Siskiyou Summit is situated in the Siskiyou Mountains, approximately 4 miles (6.4 km) north of the California border. At 4,310 feet (1,310 m), it is the highest point on Interstate 5. When the highway was rebuilt on its current alignment, road cutting lowered the elevation of the summit by 49 feet (15 m).

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