CLICK ON A COLORED AREA OF THE GEOLOGY MAP TO SHOW INFORMATION HERE
	wtr	---	water	---
	Qa	Holocene	alluvium	---
	Ql	Holocene-Pleistocene	loess	Palouse Formation
	Qfg	Pleistocene	outburst flood deposits, gravel, late Wisconsin	Missoula, glacial Lake, deposits of
	Qglf	Pleistocene	lacustrine and outburst flood deposits, Fraser-age	---
	Mv(gN2)	Miocene, middle	basalt flows	Grande Ronde Basalt, N2 (upper flows of norm.mag.pol.)
	Mv(swr)	Miocene, middle	basalt flows	Weissenfels Ridge Member, basalt of Sprague Lake
	Mv(wpr)	Miocene, middle	basalt flows	Priest Rapids Member, Wanapum Basalt
	Mv(wr)	Miocene, middle	basalt flows	Roza Member, Wanapum Basalt
	TKiqm	Tertiary-Cretaceous	quartz monzonite	---
	Yms(rrb)	middle Proterozoic	metasedimentary rocks	Ravalli Group, Revett and Burke Formations
	Yms(s)	middle Proterozoic	metasedimentary rocks	Striped Peak Fm., Missoula Group, Belt Supergroup
	Yms(sr)	middle Proterozoic	metasedimentary rocks	St. Regis Fm., Ravalli Group, Belt Supergroup
	Yms(wl)	middle Proterozoic	metasedimentary rocks	Wallace Formation, lower, Belt Supergroup
	Yms(wu)	middle Proterozoic	metasedimentary rocks	Wallace Formation, upper, Belt Supergroup
	pCbg(m)	Precambrian	banded gneiss	Mica Peak, gneiss of
	pCsc	Precambrian	schist, high grade	---