284 



FOREST TREES OF THE PACIFIC SLOPE. 



Oregon. — Chiefly Willamette River Valley (western Oregon), ascending west slope of 

 Cascades sometimes to an elevation of about 3,000 feet and into lower yellow pine 

 growth ; on east slopes of Cascades at north and lower Siskiyous at the south. Not 

 detected on sea side of coast ranges. Locally noted as follows : Beaverton, on Columbia 

 River, and at mouth of Willamette River ; Willamette bottoms near Portland ; vicinity of 

 Hood River ; northeast and east slopes of Mount Hood (in T. 1 S., R. 10 E., and T. 3 S, 

 R. 11 E.), here occurring on Tygh River Valley; head of the Willamette (T. 20 S., R. 2 



Fig. 125. — Quercus garryana. 



E., and T. 21 S., R. 3 E.) ; throughout Rogue River Basin, north slopes of Siskiyous, and 

 at Waldo in western Siskiyous. 



California. — Northwest part, generally up to lower edge of yellow pine growth at 3,000 

 or 4,000 feet ; westward to inland slope of seaward range, and probably not as far east- 

 ward as Mount Shasta (but reported in Lassen Peak National Forest) ; in Trinity 

 National Forest, eastward to point between Lewiston and Weaverville, just wost of Sac- 

 ramento Valley ; extends southward in coast ranges sparingly to Sonoma County — possibly 



