Page 223 - 1915, Springs of CA.

CARBONATED SPRINGS. 205
Iron Spring issues on the hillside about 300 yards south of the
Main Spring and 65 yards northeast of the dancing hall. A cemented
basin at this spring, at the base of a small bank beneath a protecting
roof, yields perhaps a quarter of a gallon a minute of water that tastes
similar to that from the Main Spring but noticeably stains its run-
off channel with iron. About 700 yards south of the dancing hall,
at the creek side, there is an effervescing carbonated spring that is
called the Sulphur Spring, as its water has a slight odor of hydrogen
sulphide, but it is primarily a carbonated spring. A concrete wall
along the creek protects the spring and forms a reservoir in which
its flow of about 5 gallons a minute collects. Thence a pipe extends
down the ravine to the swimming pool near the hotel. It is said
that attempts to bottle the water have been unsuccessful because its
large content of carbon dioxide breaks the bottles.
Among minor springs on the property are two or three vents in
the creek bed a few yards above the Sulphur Spring, from which
the water bubbles, and two noncarbonated springs of seeping flow
at the creek side, behind the store and hotel annex building, which
adjoins the main hotel. Small noncarbonated springs that are used
for drinking also issue from the bank back of the bottling house and
at the roadside about half a mile below the resort grounds.
Sedimentary rocks form the hills westward from Sacramento Val-
ley to within about 1£ miles of Cooks Springs. Serpentine thence
extends westward and forms the slopes at and near the resort grounds.
In some places this rock is altered so that it resembles siliceous
material, but massive serpentine is exposed in the road bank 40
yards northeast of the hotel. Pyroxene rock that exhibits concentric
weathering unusually well is shown in a roadside cut 100 yards west
of the hotel. A few hundred yards farther west, up the ravine, the
serpentine has been much broken and the fragments have been
cemented by calcite into a breccia. Several tunnels have been
driven into this material in search of copper ore.
The Main Spring and the Iron Spring issue from serpentine, but
the Sulphur Spring, which is the largest and most strongly carbonated,
issues from material that appears to be dark, altered sandstone con-
taining veinlets of calcite. The exposure of this rock may indicate
that it is present beneath the surface at the other springs, and the
calcite in it may yield the carbon dioxide of the springs. Carbon
dioxide that is given off by magnesite and other carbonates formed
from the serpentine may, however, as plausibly account for the carbon
dioxide.
FOTTTS SPRINGS (COLTTSA 3).
Fouts Springs have been resorted to during the summer for 40
years or more. In 1905 the property changed ownership and since
then it has been greatly improved. The buildings are located on a