282 FOREST TREES OF THE PACIFIC SLOPE. 



and westward, at north, to southern Trinity Mountains, here occurring on Canyon 

 Creek. Forms extensive thickets on upper San Joaquin River at about 6,000 feet, and 

 to some extent also in Kaweah River valleys. 



Fig. 124. — Quercus breweri. 



OCCURRENCE. 



Mountain slopes in dry gravelly and rocky soils. In extensive pure growth, or in 

 small patches interspersed among low chaparral brush, scrubby Kellogg oak, Fremontia, 

 etc. Peculiarly even-aged stands of great density occur at north. 



