Siskiyou Summit
| Siskiyou Summit | |
|---|---|
Siskiyou Mountain Summit marker at southbound truck brake check area | |
| Elevation | 4,310 ft (1,314 m) |
| Traversed by | I-5 |
| Location | Jackson County, Oregon, United States |
| Range | Siskiyou Mountains |
| Coordinates | 42°3′38″N 122°36′21″W / 42.06056°N 122.60583°W |
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).