64 GUIDEBOOK OF THE WESTERN UNITED STATES, 



Soda Ci-cek drains an area of Paleozoic slates and limestones east of 

 Sacramento River, 



From Castella a trail runs west across the Trinity Mountains to 

 Cinnabar, where quiclvsilver ore has been fomid. Serpentine and 



related dark igneous rocks (pjToxenite and gabbro) 

 Castella. ^j,q ^^^ principal rocks along the raiboad near Cas- 



Eievation 1,904 feet. i^][^ ^ud ill thc mouutains to the west. In places 



Seattle G41 miles. - ,, , iTii-i 



these rocks have been rendered slaty by enormous 

 pressure. The narrow mass of Shasta lava tlirough which Sacra- 

 mento River is cutting forms low benches at many places along the 

 sides of thc canyon. Between Castella and milepost 311, 2 miles 

 north of Sims^ the river has not yet worn down into the older rocks, 

 and consequently the lava appears in the bed of the stream. 



Sims, near the mouth of Hazel Creek, which enters the Sacramento 

 from the east, is frequented by trout fishermen, the upper Sacra- 

 mento affording excellent sport with the fly. Some 

 ^^"*®- asbestos occurs in the serpentine west of the station. 



Elevation i,G79 feet. Near milcpost 307 the railroad crosses Shotgun Creek, 



Seattle f,47 miles. i* i i -^ ■ i i- 



on wmcn cnromite was mined a few years ago. 

 The scenery along the Sacramento Canyon from Shasta Springs to 

 Redding is varied and charming. In places the river is narrowly 

 confined between steep slopes 2,000 feet in height. Elsewhere the 

 valley opens and little farms are perched on the hillside benches. AU 

 the slopes are well wooded, for although lumbermen have come and 

 one the country is rapidly being reforested and daily grows more 

 attractive. The clear inishing Sacramento, here foaming over bowl- 



ders, there flashing more quietly under the large leaves of the water 

 saxifrage {Peltiphyllum peltaium), which grows in beautiful masses 

 along thc water's edge, is a stream to delight the heart of a fisherman. 

 Along it may be seen the expert with the fly fielding his delicate 

 tackle, in contrast with the Indian under his tentlike shelter, waiting, 

 spear in hand, for the unsuspecting salmon. 



A mile below Gibson (see sheet 9, p. 70), at milepost 303, igneous 

 rocks are succeeded by slates and sandstones (the Bragdon formation) 

 of Carboniferous age. These continue with few interruptions for 

 nearly 20 miles. 



Good exposures of slate appear as Lamoine station is approached, 



and terraces, remnants of the lava flow from Shasta, 



Lamoine. ^^^. ^^ ^^^^ ^^ ^^^^^ ^^ j^^ ^| ^^^ ^.^^^^ About 75,000 



Smf^Sef'' ^^^* of lumber, of which one-thhd is obtained from 



the adjacent Shasta National Forest, is cut daily at 



Lamome. About half of this lumber is manufactured locally into 

 boxes. 



