Upper Umatilla River Basin, Oregon selected subbasins
This polygon shapefile includes selected delineated subbasins (watersheds) of streams within the upper Umatilla River Basin, Oregon. These subbasins, referred to by the name of their stream gages, are 1.) Umatilla River above Meacham Creek, near Gibbon, Oregon, 2.) Meacham Creek at Gibbon, Oregon, 3.) Isqu'ulktpe …