CLICK ON A COLORED AREA OF THE GEOLOGY MAP TO SHOW INFORMATION HERE
	wtr	---	water	---
	Qd	Holocene	dune sand	---
	Qa	Holocene-Pleistocene	alluvium	---
	Qaf	Holocene-Pleistocene	alluvial fan deposits	---
	Ql	Holocene-Pleistocene	loess	Palouse Formation
	Qls	Holocene-Pleistocene	mass-wasting deposits, mostly landslides	---
	Qfg	Pleistocene	outburst flood deposits, gravel, late Wisconsin	Missoula, glacial Lake, deposits of
	Qfs(t)	Pleistocene	outburst flood deposits, late Wisconsin	Touchet Beds, glacial Lake Missoula
	QMcg	Pleistocene-Miocene	continental sedimentary deposits, conglomerate	---
	PLMc(r)	Pliocene-Miocene	continental sedimentary deposits, conglomerate	Ringold Formation
	PLMcg(r)	Pliocene-Miocene	continental sedimentary deposits, conglomerate	Ringold Formation
	Mv(sem)	Miocene, upper	basalt flows	Elephant Mountain Member, Saddle Mountains Basalt
	Mv(sih)	Miocene, upper	basalt flows	Ice Harbor Member, Saddle Mountains Basalt
	Mv(gN1)	Miocene, middle	basalt flows	Grande Ronde Basalt, N1 (lower flows of norm.mag.pol.)
	Mv(gN2)	Miocene, middle	basalt flows	Grande Ronde Basalt, N2 (upper flows of norm.mag.pol.)
	Mv(gR1)	Miocene, middle	basalt flows	Grande Ronde Basalt, R1 (lower flows of rev.mag. pol.)
	Mv(gR2)	Miocene, middle	basalt flows	Grande Ronde Basalt, R2 (upper flows of rev.mag.pol.)
	Mv(sp)	Miocene, middle	basalt flows	Pomona Member, Saddle Mountains Basalt
	Mv(su)	Miocene, middle	basalt flows	Umatilla Member, Saddle Mountains Basalt
	Mv(wfe)	Miocene, middle	basalt flows	Frenchman Spr. and Eckler Mtn. Members, Wanapum Basalt
	Mv(wfs)	Miocene, middle	basalt flows	Frenchman Springs Member, Wanapum Basalt
	Mv(wpr)	Miocene, middle	basalt flows	Priest Rapids Member, Wanapum Basalt
	Mv(wr)	Miocene, middle	basalt flows	Roza Member, Wanapum Basalt