Union Pacific Railroad’s lawsuit that argued the railroad should be able to proceed with an expansion of railroad tracks in the Mosier area without approval under Columbia Gorge National Scenic Area rules was dismissed by a federal judge on Wednesday.  In her written order, District Court Judge Ann Aiken dismissed the lawsuit because the railroad had failed to include three Northwest Indian Treaty Tribes as defendants in the case.  Union Pacific filed a land use application with Wasco County pursuant to the Columbia River Gorge National Scenic Area Act, seeking to build a second mainline track in the Mosier area, but the Wasco County Commission denied the rail expansion project because treaty tribes did not give their approval to the project, as required under the County’s National Scenic Area ordinance.  That decision is scheduled to be the subject of an appeal hearing before the Columbia River Gorge Commission on June 13.  In their suit, Union Pacific named Wasco County Commissioners, Wasco County planning director Angie Brewer, and six of the thirteen Gorge Commissioners as defendants.