Page 138 - 1915, Springs of CA.

128 SPRINGS OF CALIFORNIA.
HIGHROCK SPRING (LASSEN 19).
A large thermal spring rises on the Highrock ranch, about 10 miles
south of east from Amedee. Its water is used for domestic supply
and for irrigation, and the spring forms a convenient watering place
on the road between. Honey Lake Valley and Reno, Nev. Measure-
ments in 1909 showed its flow to be about 525 gallons a minute and
its temperature 860.1 The water does not have a distinctive alkaline
taste, but it is said to rust tinned-iron vessels quickly.
The spring rises at the edge of Honey Lake Valley, from basaltic
lava that forms the hills to the east. No deposit of note is observ-
able immediately at the spring, but 30 yards northwestward are
prominent calcareous tufa crags from which the ranch takes its name.
The deposit covers an area of perhaps 2 or 3 acres, and its well-
developed crags are coated with dendritic tufa. Water does not now
issue from the tufa, but there is said to be an Indian legend that the
main spring formerly did so.

KRUGER SPRING (PLUMAS 11).
At the upper end of Indian Valley in Plumas County, in meadow-
land a mile east of Greenville, there is a thermal spring that has been
known as Kruger Spring since the late eighties. During the more
prosperous days of mining in this region it was extensively patronized
as a bathing place. Of late years, however, the bathhouse has not
been kept in repair and it has not been open to the public. In 1909
about 1 gallon a minute of water 94° in temperature flowed from, a
board-curbed pool in the bathhouse. Both the temperature and the
yield could probably be increased by sinking a well casing into
the spring. A few bubbles of gas rise in the pool, but the water has
no distinctive taste or odor. The spring may furnish evidence that
there has been faulting through Indian Valley; It seems more prob-
able, however, that alluvial artesian water is here brought to the
surface, possibly by a buried ridge.

MARBLE HOT WELLS (PLUMAS 16).
In Sierra Valley, in the southeastern part of Plumas County, several
flowing artesian wells discharge water of unusually high temperature.
The most remarkable of these wells are on the Marble ranch, at Kettle
post office, where, in 1885 and 1888, two wells, 4 inches in diameter,
were sunk about 100 yards apart to a depth of 350 feet. Each of
these wells discharges about 175 gallons a minute of scalding water,
the recorded temperatures being 156° and 161°. A third well, 150
yards west of the other two, was sunk to a depth of 450 feet, at which
i In 1882 Russell reported its temperature to be 100° (U. S. Geol. Survey Mon. 11, p. 52), but it is doubtful
whether such a marked reduction in temperature has really taken place.