Oregon Route 273
Oregon Route 273 is an Oregon state highway running from OR 66 near Ashland to Interstate 5 near the California state line. OR 273 is known as the Siskiyou Highway No. 273. It is long and runs north–south parallel of I-5, entirely within Jackson County.
OR 273 was established in 2003 as part of Oregon's project to assign route numbers to highways that previously were not assigned.