Hilltop Mine

Producer in Lander county in Nevada, United States with commodities Gold, Silver, Copper, Lead, Zinc, Bismuth, Tin

Geologic information

Identification information

Deposit ID	10044080
MRDS ID	M231404
Record type	Site
Current site name	Hilltop Mine
Alternate or previous names	Independence
Related records	10310570

Geographic coordinates

Geographic coordinates:	-116.80649, 40.41547 (WGS84)
Elevation	2067
Relative position	20 MI. SSE OF TOWN OF BATTLE MOUNTAIN
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Geographic areas

Country	State	County
United States	Nevada	Lander

Public Land Survey System information

Meridian	Township	Range	Section	Fraction	State
Mount Diablo	029N	096E	04		Nevada

Commodities

Commodity	Importance
Gold	Primary
Silver	Primary
Copper	Secondary
Lead	Secondary
Zinc	Secondary
Bismuth	Tertiary
Tin	Tertiary

Materials information

Materials	Type of material
Cassiterite	Ore
Chalcopyrite	Ore
Galena	Ore
Sphalerite	Ore
Calcite	Gangue
Fluorite	Gangue
Iron	Gangue
Jasper	Gangue
Quartz	Gangue

Alteration

(Local) Chloritic, Sericitic

Mineral occurrence model information

Model code	75
USGS model code	19c
BC deposit profile	E03
Deposit model name	Distal disseminated Ag-Au
Mark3 model number	18

Host and associated rocks

Host or associated

Associated

Rock type

Plutonic Rock > Granitoid > Quartz Monzonite

Rock unit name

Altered Quartz Monzonite Porphyry

Rock description

Altered Quartz Monzonite Porphyry

Stratigraphic age (youngest)	Pliocene
Stratigraphic age (youngest)	Pliocene
Stratigraphic age (youngest)	Pliocene
Stratigraphic age (youngest)	Late Ordovician

Host or associated Host

Rock type Plutonic Rock > Granitoid > Quartz Monzonite
Host or associated Host

Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite

Rock unit name Quartzite

Rock description Quartzite

Host or associated	Host
Rock type	Plutonic Rock > Granitoid > Quartz Monzonite

Host or associated	Host
Rock type	Metamorphic Rock > Metasedimentary Rock > Quartzite
Rock unit name	Quartzite
Rock description	Quartzite

Nearby scientific data

(1)	-116.80649, 40.41547	ListMap

Geologic structures

Type of structure	Regional
Structure description	Roberts Mtns. Thrust, At Depth

Ore body information

Strike NW

Dip VERTICAL

Strike	NW
Dip	VERTICAL

Controls for ore emplacement

Brecciation Of Quartzite, Fractures

Comments on the geologic information

"SHATTERED QUARTZITE IS SEAMED WITH STRINGERS OF QUARTZ AND IRON OXIDE CARRYING A LARGE AMOUNT OF FREE GOLD. HERE AND THERE ARE SMALL BODIES OF PYRITE AND GALENA IN THE FRACTURE PLANES OF QUARTZITE AND MINUTE STRINGERS OF GRAY METALLIC MINERAL SAID TO CONTAIN BISMUTH. ASSAYS SHOW SILVER...BY WEIGHT EQUAL TO GOLD. THE QUARTZITE NEAR THE ORE IS IMPREGNATED WITH PYRITE AND LOCALLY DECOMPOSED TO A SOFT WHITE CLAYLIKE SUBSTANCE SAID TO CARRY HIGH VALUES IN GOLD."-EMMONS.

Economic information

Economic information about the deposit and operations

Development status	Producer
Commodity type	Metallic
Deposit size	Small
Significant	No
Discovery year	1906
Discovery method	Ore-Mineral In Place
Year of first production	1912

Mining district

District name	Hilltop District

Land status

Ownership category	Private

Comments on development

IN 1907, HIGH-GRADE GOLD ORE WAS DISCOVERED IN HILLTOP CANYON. HILLTOP MINE WAS LOCATED IN 1906(?). HILLTOP MINING AND REDUCTION CO. BUILT A 10-STAMP MILL IN 1910; IN 1914 IT WAS CONVERTED TO A CYANIDATION MILL.

Reference information

Links to other databases

Agency	Database name	Acronym	Record ID	Notes
USGS	Mineral Resources Data System	MRDS	M231404

Bibliographic references

Deposit

STAGER, H. K., 1977, GEOLOGY AND MINERAL DEPOSITS OF LANDER CO., NEV.; NEV. BUREAU OF MINES BULL. 88, PT II
Deposit

EMMONS, W. H., 1910, RECONNAISSANCE OF SOME MINING CAMPS IN NEVADA; USGS BULL. 408
Deposit

VANDERBURG, W. O., 1939, RECONNAISSANCE OF MINING DISTRICTS IN LANDER CO., NEV: USBM INFO. CIRC. 7043

General comments

Subject category	Comment text
Deposit	"SHATTERED QUARTZITE IS SEAMED WITH STRINGERS OF QUARTZ AND IRON OXIDE CARRYING A LARGE AMOUNT OF FREE GOLD. HERE AND THERE ARE SMALL BODIES OF PYRITE AND GALENA IN THE FRACTURE PLANES OF QUARTZITE AND MINUTE STRINGERS OF GRAY METALLIC MINERAL SAID TO CONTAIN BISMUTH. ASSAYS SHOW SILVER...BY WEIGHT EQUAL TO GOLD. THE QUARTZTITE NEAR THE ORE IS IMPREGNATED WITH PYRITE AND LOCALLY DECOMPOSED TO A SOFT WHITE CLAYLIKE SUBSTANCE SAID TO CARRY HIGH VALUES IN GOLD."-EMMONS
Deposit	IN 1907, HIGH-GRADE GOLD ORE WAS DISCOVERED IN HILLTOP CANYON, BEGINNING RUSH TO THE AREA. HILLTOP MILLING AND REDUCTION CO. BUILT A 10-STAMP MILL IN ABOUT 1910; CONVERTED IN 1914 TO A CYANIDATION MILL. HILLTOPS INDEPENDENCE MINES WERE LOCATED IN 1906. PAINCIPAL PRODUCTION FROM HILLTOP DISTRICT WAS FROM 1912 TO 1921. TOTAL PRODUCTION FROM THE DISTRICT FROM 1902 TO 1936 WAS $701,855, MAINLY IN SILVER AND GOLD, WITH SOME COPPER AND LEAD. ; INFO.SRC : 1 PUB LIT

Subject category

Comment text

Deposit

"SHATTERED QUARTZITE IS SEAMED WITH STRINGERS OF QUARTZ AND IRON OXIDE CARRYING A LARGE AMOUNT OF FREE GOLD. HERE AND THERE ARE SMALL BODIES OF PYRITE AND GALENA IN THE FRACTURE PLANES OF QUARTZITE AND MINUTE STRINGERS OF GRAY METALLIC MINERAL SAID TO CONTAIN BISMUTH. ASSAYS SHOW SILVER...BY WEIGHT EQUAL TO GOLD. THE QUARTZTITE NEAR THE ORE IS IMPREGNATED WITH PYRITE AND LOCALLY DECOMPOSED TO A SOFT WHITE CLAYLIKE SUBSTANCE SAID TO CARRY HIGH VALUES IN GOLD."-EMMONS

Deposit

IN 1907, HIGH-GRADE GOLD ORE WAS DISCOVERED IN HILLTOP CANYON, BEGINNING RUSH TO THE AREA. HILLTOP MILLING AND REDUCTION CO. BUILT A 10-STAMP MILL IN ABOUT 1910; CONVERTED IN 1914 TO A CYANIDATION MILL. HILLTOPS INDEPENDENCE MINES WERE LOCATED IN 1906. PAINCIPAL PRODUCTION FROM HILLTOP DISTRICT WAS FROM 1912 TO 1921. TOTAL PRODUCTION FROM THE DISTRICT FROM 1902 TO 1936 WAS $701,855, MAINLY IN SILVER AND GOLD, WITH SOME COPPER AND LEAD. ; INFO.SRC : 1 PUB LIT

Reporter information

Type	Date	Name	Affiliation	Comment
Reporter	01-DEC-1981	La Pointe, D. D.	Nevada Bureau of Mines and Geology