Idaho semi-weekly world. [volume] (Idaho City, Idaho Territory) 1875-1908, 1885-06-23
PECULIAR FORMATIONS
ROISE BASIN,


richest gravel Of the Basin has not
been worked--that it is underneath
what is termed s.faIse bedrock - a
sedimentary deposit. The granite
bedrock has never been reached IN
the creek bottom nor on the Adjacent
hills. Only two claims on this side Of
the BASIN have been worked to gran
tie bedrock; one is east Of Wallaf
Walla Flat, and upon q high emin-
ence, above tie .swash." This claim
is owned by Buzzini, Brodtn,iller and
Cetcovitch. From all appearances
there was lake III this basin, and
| probably long before the time it Isl
recorded that Adam and Eve stole
apples. The water line is easily To-
Gated on all sides, and below this
line is the sedimentary deposit, or
ssfalse bedrock" There are eyiden-
ces sufficient to prove the lake theory
conclusively, and there is scarcely
, any doubt that the gold Of the plac-
: ers was washed down from quartz
; veins. Ia the hills near the creeks
, the formation would prove an inter
r esting study for the geologist. There
t are numerous strata of the false bed
/ rock, with good pay gravel between
: them. How far down this system
I of strata and gravel extends no one
g knows; but it is very probable tina
IS tie first wash carried the most gold
e Along the creeks nothing is know
: OF the formation beneath tn,
n upper stratum, nor how thick thl
N stratum is. 4 shaft was sunk lively
or fourteen years ago on Elk creek
d just west OF town, and after sinking
"a one hundred feet, the company tina
S started in to sink below the first laye
i'd Of ''false bedrock" or to the grant
- the country rock-had to give u
- the undertaking. They were nc
! provided with pumping machiner
and could not keep the shaft clear {
= water. Pieces of bark were take
from the bottom of the shaft, proyiu
. that the s'false bedrock" has been d.
:. posted by water. Pieces Of bar
can also be seen on the bedrock
- PIowman's claim, on East Hill
the lower stratum to which the grour
is worked, and there are strata
this sedimentary deposit between Il
J. lower one and the surface. In t
- claim of Buzzini & Co, which is abo
- the sedimentary formation, the p
gravel extends from the surface
the granite bedrock, and there is
"false BEDROCK between the surfa
oes and the granite. 1t is all gravel.
en- German guieh, tributary of Be
ely Run gulch, the granite bedrock v
bic near the surface, and the ground v
de- rich. 1t was worked many years a
and BOISE Basin has yielded inealculal
SER millions of the precious yellow mel
he and 1t is more than probable t
80 there is more @, Id i'll the Basin
aai, than has been taken out, and the ii
$50 will come when a shaft will be
tx. down to prospect for pay gra'
Between the strata of ''faise oedro
on
,an- of Gold Hill, there is pay gravel,
rate the same is true of East Hill.
will sink to any great depth would req
good pumping and hosting MACH
oe nv, but what such machinery VIC
L 40 cost we could not form an estim
nay HAY Boise Basin has probably produ
Sich- as much gold as any camp IN any
ana of the world within the history
placer mining. California had a
!. es of ground richer than any that
or of been worked in this Basin, but
-