No. 5. The John Day River Highway—
From a point on Highway No. 2, at or near Biggs, southeasterly through Wasco, Condon, Fossil, Dayville, Prairie City and Vale to the Oregon-Idaho State Line at Ontario.
No. 6. The Old Oregon Trail—
From a junction with Highway No. 2, at Pendleton, southeasterly through La Grande, Baker and Huntington to a junction with Highway No. 5 at or near Ontario.
No. 7. Central Oregon Highway—
From a point on Highway No. 4, at or near Bend, easterly through Millican, Riley, Burns, Crane and Juntura to a junction with Highway No. 5, at or near Vale.
No. 8. Oregon-Washington Highway—
From a point on Highway No. 2, at or near Willows, through Ione, Heppner, Pendleton and Freewater to the Oregon-Washington State Line.
No. 9. Pendleton-John Day Highway—
From a point on Highway No. 8, at or near Pilot Rock south to a junction with Highway No. 5, at or near John Day.
No. 10. La Grande-Enterprise Highway—
From a point on Highway No. 6, at or near La Grande, through Elgin and Enterprise to Joseph.
No. 11. Enterprise-Flora Highway—
From a point on Highway No. 10, at or near Enterprise, north to Flora.
No. 12. Baker-Cornucopia Highway—
From a point on Highway No. 6, at or near Baker, east through Middle Bridge and Halfway to Cornucopia.
No. 13. Baker-Unity Highway—
From a point on Highway No. 6, at or near Baker, southwest to a junction with Highway No. 5, at or near Unity.
No. 14. Antelope-Mitchell Highway—
From a point on Highway No. 4, at or near Antelope to a junction with Highway No. 15, at or near Mitchell.