Page 131 - 1915, Springs of CA.

HOT SPRINGS. 123
used mainly for irrigating the meadowland, but the supply could be
developed and more efficiently used by proper ditching.
HOT SPRINGS ON EAST SIDE OF SURPRISE VALLEY (MODOC 14).
Between Upper and Middle lakes, on the east side of Surprise Val-
ley, three small hot springs rise in a small depression on a gentle
greasewood-covered slope. The discharge from the springs is
increased by seepage from a marshy strip along the overflow, 75 or
100 yards beyond. In 1909 the water was used for irrigating meadow-
land and a small vegetable garden. The soil near the springs showed
an efflorescence of common salt and soda, but the water did not taste
noticeably mineralized.
HOT SPRINGS AT EAST BORDER OF SURPRISE VALLEY (MODOC 13).
One mile west of the hot springs between Upper and Middle lakes
near the base of slopes that encroach on the valley, scalding water issues
from small vents within a space of 20 yards. Corrals and vats have
been constructed here and the water has been used in preparing sheep
dip. The water is without appreciable odor or taste and is not
notably mineralized. About 100 yards east of the springs'is a ledge
of iron-stained silicified rock that resembles in appearance an ande-
sitic dike rock that has been silicified by the action of heated water.
A prospect pit for limestone has been dug in a small deposit of calcare-
ous tufa, half a mile southward, but this material was not observed
at the springs.

HOT SPRING NEAR EAST SIDE OF MIDDLE LAKE (MODOC 15).
Near the eastern side of Middle Lake is a hot spring that is said to
form a pool 25 feet in diameter and 6 feet deep. Its flow has been
estimated at more than 300 gallons a minute, and like the other
springs of the valley it forms a meadow area bordering the lake.

HOT SPRINGS NEAR WEST SIDE OF LOWER LAKE (MODOC 16).
About 5 miles south of Eagleville hot water issues at half a dozen
or more places in the gravel of the valley side, in a depression similar
to the depressions in which other hot springs in Surprise Valley issue.
The water has no appreciable taste or odor. There was formerly a
small bathhouse at these springs, and later a dam was constructed
that made a swimming pool, but in 1909 the water was used only to
irrigate 30 or 40 acres of meadow and alfalfa.
HOT SPRINGS NEAR SOUTHWEST SIDE OF LOWER LAKE (MODOC 17).
Three miles south of the springs just described is another group of
hot springs that are said to irrigate about 160 acres of meadow. The
water at this place forms a pool and is considered to be somewhat