Saddle Mountains Basalt  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Neogene
 ....Miocene
 .....Saddle Mountains Basalt
UFSaddle Mountain Basalt
RTIdaho
 Washington
 Oregon
 Columbia River Basalt Group
 Yakima Basalt
SNIn Yakima Basalt of the Columbia River Basalt Group. Includes Ice Harbor Member. N Idaho, N Oregon and S Washington. Added to Thesaurus in 1989.