The record-union., 1891-11-30

Blair's Diggings is located on left bank
of Slate Creek, 8 tributary of North Euba
/ River. one-half mile below the town of
Port Wine, and has one monitor, with q
capacity OF about $50 inches under pres
sure OF 200 ieeJ vertical. The bank has
feet. IT, 'p''i''''l'' 'iisn' q '0o'' S"''
Pioneer mine is located at Grass Flat.
on the left bank OF Slate Creek, a tribu-
tary of the North Yuba River, and has
/ two monitors with a capacity OF about 100
! inches each, under a vertical pressure OF
about 20J feet. i he bank III this claim
las perpendicular hight of about $40
feet.
Yankee Hill claim is located on the
right bank OF Slate Creek. about three
! miles above the town of iaporte, ana GaS
one monitor with capacity of about 200
! inches under q vertical pressure of about
! $50 feet. 4hiS claim is ciassed as surface
/ dig2ings, the material ranging in depth
! from two to twelve or fifteen feet.
On the head Of Rabbit Creek, q tribu
/ tary Of slate Creek. tributary Of North
! Guba River, one-quarter of mile above
the town Of lIaporto, IS located Il claim
which has two monitors, with a capacity
I of2J0 inches each under vertical pressure
ofabout 200 feet
The Eureka North mines, Arnott,
| Scales Dig9ings and Pioneer have all
been enjoined in the Superior Court OF
Iuba County, with the above result.
n addition to tie above mentioned
/ machines on the North Euba River
there arc also eleven canvas hose. These
machines use from thirty 20 sixty inches
OF water under vertical pressure ranging
from fifty TO one hundred feet. The
water for their operation is conducted
! through iron pipes ranging iii diameter
from SIX 20 twenty incnes, at the lower
! end OF which is connected nozzle by
piece of canvas hose allows the easy
movement OF the nozzle SO it can be d,
/ rected against different parts Of the bank
winch is to be operated on.
Be it understood that the three forks
/ tSouth, Middle and North of the Ameri-
can River are tributary, and flow into the
! main American River, thence into the
/ Sacramento River, thence into Suisun
Bay, through the Straits OF Carquinez
into San Pablo Bay, thence into San
/ Francisco Bay; also, that the Bear River
! is tributary and flows intO the Feather
River, thence into the Sacramento River,
thence into SEisun Bay, thence through
the Straits OF CarquineA into SAN Pablo
/ Bay, thence into san Francisco Bay; also
that the three NuDa Rivers LSoutb, Mid
die and Northl are tributary and flow
into the main TGba River, which flows
thence into the Feather River, thence
into the Sacramento River, thence into
Suisun Bay, thence through the Straits Of
! Carquinez into San Pablo Bay, thence
into San Francisco Bay.
Most all the mining claims mentioned
in the foregoing report nave been seen
! IN active operation during the year last
! past. and by frequent visits we see that
4 the banks III the Others are being carried
! away at the same rate.
The North Bloomfield Gravel Mining
! Company, which is the most extensive
/ hydraulic mine on the watershed of the
Sacramento River, was closed down
! seven months ago. 1t was en- Joined in
/ the United States Circuit Court, two years
ago, but up TO the time mentioned man
( aged to avoid punishment through techni-
calitieS. This mine uses five monitors
with capacities ranging from 500 to I,G00
! inches each. under vertical pressure of
about 500 feet. The bank has a per-
pendicular hight of about 400 feet
The Brandy City mine, which is also
idle, has been enjoined by the United
States Circuit Court, and seems disposed
to abide by the decree.
With the exception Of the last two men
toned, we believe that all the claims
noted in the report will be in active
operation this winter Unless measures
! are taken to prevent them.
Total number Of monitors, fifty-seven;
total number of canvas hose, twenty
THE HYDRAULIC AvALANcHE.
To better illustrate the effect of un-
bridled hydraulic mining on the
lands and waters of the State,
there is herewith presented. in
round numbers, the fill in the waters
and on the lands according to the recent
/ and most accurate surveys attainable
i The figures given do not represent the
total deposit, but only the additional fill
since former survey was made by Fed
eral authority about the year 1878.
These recent examinations show a fill
| over he referred fpl10yvS.
Cubic Yards
In Foa.her River. from Marys-
vile to its juncdon with the
SacIaIuentO.............. 2.233, coo
| In the sacramento, from the
Feather to its entrance into
Suisun B B!y........................... 25 OOO,OO0
In SuiSun Bay ~ 73O. 600
In Carqu1nez 63444, 600
In San Pablo Bay..................... 10000 GOO
| In san Francisco Bay................. 81 10000
Making a grand total of 26S 4O7. 600
The Circuit Court, in it's opinion of
| January z, 1884, in the Woodruff case
! found on the Yuba Il, 30 acres DESTROYED
The depth Of this fill will probably
average fifteen feet, but assuming it to be
ten feet over an area of 5000 acres lit is
believed to exceed $4,000 acres, rather
than less, at the present time), we have
twenty-tiv sections of the best quality of
land lying under sand and debris ten feet
deep. Now assuming for convenience OF
reckoning that million cubic wards of
material are contained in a section of land
one foot in depth ithe exact amount is a
trifie over, we have 10000. .0OO a section.
or 250, 200, 600 on the twenty-five sections,
saying nothing OF the material remaining
III the mountain gorges.
Add to this estimate an equal amount
OF land and fill on the Bear River. viz.
250, eco, 900, and as much more for the de-
| post on all the lands of the Feather
American, ,Calaveras, Cosumnes and other
rivers (which must be widely within the
I facts, 250, 100000 more. These estimates
give a total of one thousand and eighteen
million cubic yards of mining debris
lying in the navigable waters and upon
the farms OF the Sacramento Valley.
RECAPITULAToN.
Cubic Yards
In teather ElVer. ...,.............. 2,233,oo0
Feather River to its entrance
| into Suisun Bay................... $4,000 O0O
IN ouisun bay .................. 67,73o, 900
! IN CarqGihe otfalls 63,444 ,0C0
| In san Francisco Bay.............. 81 600 OO0
| IN san FaDlo Bay:.-:.-........-.... 10000, 900
| In Bear River and lands 25O'OO0 On0
| In uoa RlTer and lands......... 250, 10000
On lands OF Feather American,
/ Ca1ayeras, Cosumnes and
/ other r1yers............-........ 25O,OOO 600
,o1 ,4o7, 900
Now it is known that these minino
sands, if spread upon good land to =
Ga A 3 -