Page 678 - calmining1890

632 REPORT OF THE STATE MINERALOGIST.
toms and stone drags, are manufactured on the ground from broken quartz
taken from the mine.
Since the report of 1888, the Superintendent, Mr. Paul, has also intro-
duced his " Paul dry amalgamating barrel process," patented; all ores
are amalgamated dry in cylinders.

LOWER SPRINGS MINING DISTRICT

Is situated in T. 31 N., R. 5 W., M. D. M.
The following gold-bearing quartz mines: Lizzie Longley, Strata,
Echo, Enterprise, and Ida May, properties of the Gem Consolidated Min-
ing Company, are situated on the mountains about one quarter of a mile
west of Middle Creek and four miles northwest of the town of Redding.
The main developments are on the Lizzie Longley, and consist of an
incline shaft sunk at an angle of 58 degrees, dipping to the north on vein,
with double compartments to depth of about one hundred and twenty-
five feet. At bottom of incline, levels have been run following the vein
to the east and west. The foot wall is slate, and hanging wall porphyry;
elevation of croppings nine hundred and ten feet. The improvements
comprise a ten-stamp mill with two batteries of five stamps each; weight
of stamps eight hundred and seventy pounds each; one thirty horse-power
Corliss engine and boiler; steam hoisting works at mouth of shaft. The
mill is equipped to run by either water or steam power.
Water is introduced from Middle Creek about two miles above the
mill, conducted from creek through the Gold Hill ditch and flumes, the
company having flumed all the ravines with twenty-four-inch iron
pipe. The water power continues during the rainy season.
The character of the vein matter is quartz and talcose auriferous
slates, the gold being mainly free; per cent of sulphurets not exceeding
one half of 1 per cent, the sulphurets being of high grades.
The vein of the Lizzie Longley has been traced by its croppings for
several thousand feet on the surface, the Eureka Mine being the first
western extension, and the Tiffin Bulkhead Mine adjoining the Ida
May to the east. The vein is made up of a series of pay shoots that in
places show very rich ore; average width of vein, four feet.
During the past year there has been considerable prospecting on the
many quartz veins that have been located in this district.
The veins vary much in their course and bearings, from due, north
and south to northwest and southeast, some sections showing strata
or quartz bearing east and west. The general dip is northerly with the
stratification of the formation.
The old Spanish vein, Section 31, through the Lower Springs Ranch
and the Weisir Ranch, has been prospected in various places with good
results for a distance of over a mile along the outcrop. The vein is
about four feet in width, prospecting in free gold, with a small per cent
of sulphurets.
In early days the ravines and gulches in the mountain through which
this vein crosses were exceedingly rich in " placer," mainly below the
point of outcrop of this ledge. During the past year several pieces or
nuggets were picked up, having been washed down by the winter's rain.
The owners of the properties will not permit any mining, as the level
Lands adjoining are under cultivation — vineyard and orchard.