48 FOEEST TEEES OF THE PACIFIC SLOPE. 



9,500 feet, and southward to head of Cottonwood Creek ; also throughout western slopes, 

 forming a similar belt, above and with Phi us ponderosa (usually at and near its upper 

 limits) and extending southward through Tehachapi Mountains to southern cross ranges. 

 On west slopes of Sierras (Stanislaus National Forest), found about Strawberry and Bear 

 Meadow. North slope of Lassen Peak (Shasta County), eastward to 5 miles west of 

 Quincy and Beckwitb, Sierra Valley westward to Bucks Valley (5,200 feet),, and 30 

 miles down Feather River Valley. Lassen County: Northwest corner between Fall River 

 and Big Valley eastward to 6 miles west of Bieber. Sierra County: Eastward to ridge 

 west of Sierra Valley (at levels between 5,700 and over 6,000 feet) to Sierraville and 

 Truckee ; westward to Bassett Road House (west of Yuba Pass) at 5,200 feet. Xeraila 

 County: Eastward on east slope of Sierras and into Nevada to hills west of Steamboat 

 Valley ; westward to Bowman Lake (between Middle and South forks Yuba River), and 

 to Cisco. Placer County: Eastward to Lake Tahoe and into Nevada; westward to Sugar 

 Pine sawmill (4,000 feet). Eldorado County: East side of Sierras; west side, westward 

 to Echo (5,500 feet). Alpine County: East side Sierras from Woodfords and Markleeville 

 to cist part Mokelumne Tass : west side, from 8,400 feet westward to about 6,500 feet 

 (Calaveras County). Tuolumne County: Westward to between Cold Spring and Eureka 

 Valley (5,000 feet) and Aspen Meadows (6,300 feet) ; eastward on west slope of Sierras 

 to Sonora Pass and to over 8,000 feet, and 2 miles west of White Wolf (Middle Fork 

 Tuolumne i at 7.500 feet. Mono County: East side of Sonora Pass on mountains about 

 West Walker Creek and in pass to about 8,300 feet; from little southeast of Junction 

 House nearly to Bridgeport Valley ; between latter and Antelope Valley in West Walker 

 Canyon, disappearing several miles south of Antelope Valley; west of Mono Lake on east 

 slopes of Sierras and on Leevining Creek nearly to lake ; Walker Lake at lower end of 

 Bloody Canyon, and sparingly to about 9, M00 feet; south of Mono Lake (east side Mono 

 Craters) on east base of Sierras to point beyond Mammoth ; in valley west side of Mono 

 Craters to a point 7,300 feet about 7 miles, south of Earrington's. In belt about 15 

 miles wide between Mono Desert and Casa Diablo (at 7,000 to 8,000 feet) eastward from 

 Sierras to south end of Mono Craters; south of Mammoth, on both sides of head o.f 

 Long Valley, and between Long and Round valleys. Inyo County: Divide north of 

 Round Valley and westward to foot of Sierras; west of Owens Lake, on east slope of 

 Sierra between 9,000 and 9,500 feet. Mariposa County: Eastward to Sunset Ridge least 

 of Little Yosemite) at 9,000 feet. Mount Hoffman, headwaters of Snow Creek, at 8,500 

 feet, on Yosemite Creek (north of Yosemite Valley) to 8.500 feet, and westward to point 

 (5,500 feet) 8 miles north of Wawona. Middle Fork of Kings River, at 9,500 feet; South 

 Fork Kings to Bubbs Creek and Horse Corral Meadows. Cliff Creek to Deer Creek (Mid- 

 dle Fork Kawash River), farewell Cap. and Kern River canyons to 9,000 feet; junction 

 of Kern and Little Kern rivers, at 6,000 feet; Dry Creek meadow (near Kern River), at 

 4,800 feet. Mount Breckenridge, at 5,000 to 7.000 feet, Tehachapi Peak (Tehachapi 

 Mountains), and Bear Mountain (west of Tehachapi Fass). Southern cross ranges 

 (Santa Barbara National Forest), at elevation of from 4,500 to 8,800 feet, as follows: 

 Big Pine Mountain, at 7,000 feet; Seymour Creek, at 6,700 to 7,000 feet; South Fork of 

 Firu River, at 5,000 feet ; near junction of Alamo River, at 4,500 feet ; near Mount Pinos, 

 a i 5.7r>0 to 8,800 feet. San Gabriel National Forest, on Mount Wilson and Pine Flats 

 (Frazier Mountain). San Bernardino Mountains, at altitudes from 5,000 to 6,700 feet 

 in Bear and Little Bear Valleys, in vicinity of Crafts Teak, and on other north slopes; 

 also on San Jacinto Mountains ; San Jacinto Peak, at 5,200 to 9,300 feet ; noted in east 

 end Round Valley, Tahquitz, Onstatt, Strawberry, and Thomas valleys: throughout Cuya- 

 maca Mountains, being reported in Pine Valley, at 3.600 feet. 



Lower California. — Mount San Pedro Martir. at 6,000 to 10,000 feet. 



OCCURRENCE. 



Commonly between the upper altitudes of western yellow pine and of white fir, with 

 no sharp line of separation between its range and the ranges of these trees ; usually over- 

 lapping the upper range of yellow pine and sometimes exceeding that of white fir. Best 

 commercial growth between 5,000 and 6,500 feet elevation. Soil requirements moderate, 

 but for best growth demands well-drained, loose, coarse, sandy or gravelly soil with 

 abundant moisture. Occurs extensively, however, though in poor form or much stunted, 

 on poor, shallow soils and in crevices of bare rock. Appears to require more soil moisture 

 than white fir and sugar, yellow, and Coulter pines. 



Occasionally in pure stands, and often predominating in mixture. Pure forests occur 

 at lower altitudes where soil and moisture conditions are the best, as in bottoms and 

 along streams, or at higher elevations, soil on rocky summits, where more exacting trees 

 are excluded for want of sufficient moisture. At north, associates with western yellow 



