The Wallowa Union Railroad Authority (reporting mark WURR) is a short-line railroad owned by Wallowa County and Union County in the U.S. state of Oregon.

It operates freight and tourist trains over a 62.58-mile (100.71 km) ex-Union Pacific Railroad line from the end of an Idaho Northern and Pacific Railroad branch at Elgin to Joseph, generally paralleling Oregon Route 82.

The Oregon Railroad and Navigation Company, a predecessor of the Union Pacific Railroad (UP), completed a branch from the main line at La Grande through Elgin to Joseph in late 1908.

[2] The Surface Transportation Board authorized abandonment beyond Elgin in 1997,[3] but this was not consummated, and in 2002 Wallowa County purchased the line, still operated by the INPR.

[5][6] Since 2003, the Eagle Cap Excursion Train has operated on the line.