[2] OR 3 has its southern terminus at a junction with Oregon Route 82 in the city of Enterprise.

It runs north/south, passing near the small community of Flora.

From Clarkston, U.S. Route 12 provides direct access to Lewiston, Idaho.

Milepoints are as reported by ODOT and do not necessarily reflect current mileage.

Z indicates overlapping mileage due to construction longer than established route, and – indicates negative mileage behind established beginning point.