large shield volcano cascade range south central oregon located miles east border located mountain range miles main cascade volcanic best known members enigmatic arc massive shields miles farther north oregon miles south highest volcano eastern arc feet higher medicine lake central mythology mountain offers activities hiking horseback riding historically area inhabited native american tribes settlers 1970s fire tower sat summit mountain foundation remains day life diverse western half range features lush vegetation eastern portion drier range supports animals including endemic endangered species geography geology like produced oceanic annual convergence continues rate inches year majority active million years rock making slightly older dated million years old attempt organize age scientists typically divide provinces high younger comprising older volcanic complex medicine lake highlands range shield kilometres kilometres east main centers unlike stem basin range appear isolated major volcanic ranges scientists group recent lasting produced largely based material percent eastern erupted materials types lava flows flows recent volcanic activity erupted particularly sisters broken history corruption native american tribe form meaning north wind mountain supposed home supreme mythology historically area mountain inhabited snake people lived east near modern day group inhabited million acres km2 land oregon california traders entered area point worked routes opened built city southeast sprang 1920s featured fastest growing population oregon contributors new growth development included creation completed opened area logging timber business focus profit area mountain features fire tower foot steel tower built summit removed 1970s remnants foundation remain today dirt road built summit service abandoned tower removed upper miles form hiking trail summit climate ecology cascade range dramatically different climate west east west heavily forested features trees douglas western pacific silver alaska yellow east lies climate drier arid precipitation significantly declines vegetation sparse pine white fir pine south plants prevail diverse life exists range including endangered species like spotted amphibians like frogs common birds mammals area consist mountain lions deer black bears fish include short endemic species recreation passes area offers tourists excellent views landmarks mount sisters mount activities trail include hiking horseback riding mountain recreation area located elevation feet
Yamsay Mountain