Oregon Route 203

Oregon Route 203 marker
Oregon Route 203
Map
Route 203 highlighted in red
Route information
Maintained by ODOT
Length49.23 mi (79.23 km)
Existed1935–present
Major junctions
South end I-84 in Baker City
Major intersections OR 237 in Union
North end I-84 / US 30 in La Grande
Location
CountryUnited States
StateOregon
Highway system
OR 202 OR 204

Oregon Route 203 is an Oregon state highway running from Interstate 84 near La Grande to I-84 near Baker City. OR 203 is composed of part of the La Grande-Baker Highway No. 66 (see Oregon highways and routes) and the Medical Springs Highway No. 340. It is a combined 49.23 miles (79.23 km) long and runs north–south.