W. P. Blake on the Gold Region of California and Oregon. 83 
or more. A steep chasm or channel extends from the top of the 
ridge to its base, and is partially filled with rocks and the debris 
of the vein. Solid blocks of the ore were found with this ac- 
cumulation, having been broken out from the vein above; one of 
m was twenty-seven inches long and sixteen to eighteen wide, 
The ore is associated with quartz, and where it has decom- 
posed, an abundance of antimony ochre is found, together with 
crystals of selenite. Specimens of quartz traversed by long pris- 
matic crystals of the ore were obtained.* 
_ Saur.—Salt is found in small quantity as an incrustation or ef- 
florescence on the soil along streams or on the margins of ponds — 
in nearly all parts of California. It appears * most abundant — 
in connection with the tertiary strata and in th@streams that flow 
from them. It is doubtless the fact that a great part of the in- 
crustations called soda, consist principally of common salt. 
ulare Co.—Caiiada de las Uvas.—There is a small shallow 
lake near the central part of this Pass fed by springs and streams 
from the adjoining valleys and ridges which are partly of tertiary 
strata. During the summer season the water of this lake evapo- 
rates, and its bed becomes covered with a white crust of salt 
which glitters in the sunlight like’a field of snow. 
Taheechaypah Pass.—A lake of a similar character to the one 
just described is found in one of the elevated valleys of the Si- 
actin, HOE TH is Pass. At another locality in that vicinity 
» and-near the margin of the Great Basin, salt occurs ina thick bed, 
from which over one hundred mule-loads have been taken, and 
carried to the T'ejon Indian reservation for the use of the Indians. 
This salt is perfectly white and amorphous, being reduced to a 
fine powder by simple pressure. It is sufficiently pure for table use. 
Dry salt lakes are also found near the termination of the Mo- 
jave river in the Great Basin, and at many other places through- 
out Southern California. 
os Angeles Co.—Salt is now manufactured in large quantity 
from sea-water by solar evaporation on the coast near Los An- 
geles. ea 
Lower California.—A dry salt-lake has been discovered about 
250 miles south of San Diego and near Marguerita bay. It 
forms a thick bed and is very pure, being well crystallized in 
large hopper-shaped crystals. It is reported that the locality 
has been purchased by capitalists and that the salt is being shipped 
from there in large quantity. 
YP — Transparent plates of selenite are common in the 
soft unconsolidated tertiary strata in various parts of the state. 
At some localities it forms seams or beds several inches thick lying 
conformably with the stratification. In Tulare Co., at Ocoya 
* A more detailed notice of tis totality gr be oe in the spat Prelimina 
i EDK ing t eport of a Reconnoissance i : 
ee ee Wis Hass Doe. 120. 1s 
coe 
