Page 374 - 1915, Springs of CA.

354 SPRINGS OP CALIFORNIA.

and the water is piped a few yards to a board-curbed pool that forms
a watering place for cattle. In July, 1909, the visible flow was about
1 gallon a minute of water of good quality.
SPRINGS NORTHWEST OF ROSAMOND (KERN 24).
Springs that are similar to the one just described issue a mile north-
eastward and higher up on the slope. They have been used as a
water-supply point and a camping place by prospectors. The water
issues at two points a few yards apart on a gentle slope that rises
northward to steep hills. One spring seeps from beneath a ledge of
tuffaceous material. The other issues in a small excavation and
forms a pool behind a cement dam. Each spring yields perhaps one-
half gallon a minute of water of good quality.
The hills north of these springs are composed partly of volcanic
material, and the water seems to issue from a porous tuffaceous
layer. These springs, however, like Willow Springs (Kern 22, p. 318),
which have been described among the artesian springs, issue at the
upper edge of a gentle slope that lies between a flat valley'and steep
hills, and the water may rise along a small fault that borders the valley.
SPRINGS ON TEMBLOR RANCH (KERN 4).
In the Coast Ranges that lie along the southwest side of San Joa-
quin Valley there are a number of perennial springs that resemble in
general character those in the southeastern part of the State, for they
are in an arid region, are of small flow, and are of importance mainly
because they form watering places. Those which are in the eastern,
portion of San Luis Obispo County'and the western portion of Kern
County have been of value as watering places for range cattle as well
as for travelers, however, so have been more often used than those
in the southeastern desert region. The water of most of them is
notably brackish or bitter, and a number of them are also sulphureted.
One strongly sulphureted spring (San Luis Obispo 12, p. 277), that is
used to supply cattle-watering troughs, has been described among
the sulphur springs. Springs that rise on the Temblor ranch/about
12 miles northwest of MeKittriek, yield a supply of water that is
sufficient for a small amount of irrigation. The water is not of very
good quality, however, being noticeably hard.

THOMPSON SPRING (SAN LUIS OBISPO 6).
Thompson Spring is in Carrizo Plain, westward across the Temblor
Range from McKittriek. The spring rises in a curbed pool about
8 feet square and 6 feet deep, at the base of a knoll of clay and
gravel. It yields about 2 gallons a minute of slightly brackish water,
which is piped to a cattle trough near by. Two smaller springs are