South Junction is an unincorporated community in Wasco County, in the U.S. state of Oregon.

[2] South Junction was named for a junction point between two competing rail lines, the Great Northern Railway and the Union Pacific that built along opposite sides of the Deschutes River.

[3] The Oregon Trunk Railway, which extended 150 miles (240 km) from the Columbia River to Bend, began as separate lines in 1909.

After the Union Pacific abandoned its separate line with separate station names, the other stations in the vicinity were Jersey, Kaskela, and North Junction to the north and Coleman, Mecca, and Vanora to the south.

This Wasco County, Oregon state location article is a stub.