Oregon Route 350 is an Oregon state highway running from Joseph to Imnaha. OR 350 is known as the Little Sheep Creek Highway No. 350 (see Oregon highways and routes). It is 29.36 miles (47.25 km) long and runs east–west, entirely within Wallowa County. OR 350 was established in 2003 as part of Oregon's project to assign route numbers to highways that previously were not assigned, and, as of August 2011, was unsigned.