Download the PDF Letter, landscape, two sides. Flip on the short edge. Live conditions for Siskiyou Summit
I-5I-5OR 99CA 96CR 722OR 66A28OR 273AshlandYrekaTalentMontague
I-5OR 99OR 66
1 mi
Stops 3, 4, 5, 6, 7
5 mi
N
I-5 · Oregon

Siskiyou Summit

4,310 ftsummit elevation
just north of the California line, south of Ashland on I-5
  1. 1Suncrest Rest Area
  2. 276Fuel
  3. 3ChevronFuel
  4. 4Welcome CenterVisitor center
  5. 5Siskiyou Rest Area
  6. 6Glenyan RV Park & Campground
  7. 7Information Booth
  8. 8Randolph E. Collier Rest Area
★Siskiyou SummitFreewayHighwayLocal road
Visitor centerRest areaFuelCampground
Base map USGS The National Map. Roads, towns and stops © OpenStreetMap contributors. Built September 29, 2026. Printed maps go out of date. Live conditions at milecheckapp.com/passes/siskiyou/
I-5 · Oregon

Driving Siskiyou Summit

When it closes

If any part of I-5 is going to close in winter, it's usually here. At 4,310 feet, Siskiyou Summit gets snow and ice that shut the interstate or force chain requirements several times a season. Because it's the only I-5 crossing of this range, a closure here backs up traffic for hours in both states.

Are chains required on Siskiyou Summit?

Chain and traction requirements are set by ODOT and change with the weather. This pass can go from clear to chains-required quickly.

What is the highest point on I-5?

Siskiyou Summit, at 4,310 feet in southern Oregon, the highest elevation on Interstate 5. The Grapevine in California is the other big winter closure spot.

Where exactly is Siskiyou Summit?

On I-5 in southern Oregon, a few miles north of the California border and south of Ashland. Track your exact mile marker over the pass with the MileCheck app.