| Deposit ID | 10001286 |
|---|---|
| MRDS ID | A012017 |
| Record type | Site |
| Current site name | Eagle River Mine |
| Alternate or previous names | Amalga |
| Related records | 10282475 |
| Geographic coordinates: | -134.77731, 58.57336 (WGS84) |
|---|
Political divisions (FIPS codes)
Juneau(Borough)
Alaska(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Juneau C-3(quadrangle 1:63,360 scale)
Juneau NE(quadrangle 1:100,000 scale)
Juneau(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Lynn Canal(hydrologic unit)
Northern Southeast Alaska(hydrologic accounting unit)
Southeast Alaska(hydrologic subregion)
Alaska(hydrologic region)
Federal lands
Tongass National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State |
|---|---|
| United States | Alaska |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Lead | Tertiary |
| Copper | Tertiary |
| Zinc Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Copper | Ore |
| Galena | Ore |
| Sphalerite | Ore |
| Pyrite | Gangue |
| Pyrrhotite | Gangue |
| Quartz | Gangue |
| Result | SEE PRODUCTION DATA |
|---|
| Host or associated | Associated |
|---|---|
| Rock type | Plutonic Rock |
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Metasedimentary Rock > Slate |
| (1) | -134.77731, 58.57336 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Ore Bodies Cut Off And Offset By Numerous Faults |
| Strike | N 30 W |
|---|---|
| Dip | 50 NE |
| Plunge | 30 |
| Plunge direction | NW |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1902 |
| Discoverer | L.O. Sandstone; Neil Ward |
| Year of first production | 1903 |
| Year of last production | 1916 |
| District name | Juneau/Eagle River |
|---|
| Ownership category | State |
|---|
| Year | 1916 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Period | 1903-1916 | ||||||||||||||
| |||||||||||||||
| Type of workings | Underground |
|---|---|
| Length | 9966.96M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | A012017 |
USGS BULL 287, P. 130-131
USGS BULL 284, P. 35
USGS BULL 502, P. 44-46, PLATE 2, LOC. 12
USGS BULL 622, P. 101
USGS BULL 642, P. 76-77
USBM BULL 153, P. 23
USGS BULL 662, P. 77
USGS OFR 85-717, P. 139
USGS OFR 85-572, P. 167, NO. 59
STONE, DAVID AND STONE, BRENDA, 1983, HARD ROCK GOLD, THE STORY OF THE GREAT MINES THAT WERE THE HEARTBEAT OF JUNEAU: SEATTLE, WA, VANGUARD PRESS INC., P. 87
BAG-OFR-85-717-126
LINE 15: USGS BULL 1246, P. 158; LINE 16: STONE AND STONE, 1983, P. 87
| Subject category | Comment text |
|---|---|
| Deposit | QUARTZ VEINS IN SHEAR ZONE CONTAIN ORE SHOOTS 5 TO 15 FT WIDE, 25-100 FT LONG; VEINS TERMINATE ON FAULTS; SULFIDES ARE PYRITE, PYRRHOTITE, ARSENOPYRITE, GALENA, SPHALERITE, CHALCOPYRITE; SOME NATIVE CU REPORTED |
| Deposit | SEE ALSO: REX, JULIA GROUP; DISTORTION OF COUNTRY ROCKS DUE TO GRAVITY SLUMPING AND SURFACE CREEP IS PREVALENT IN THE MINE AREA; SOME DIFFICULTY WAS ENCOUNTERED IN KEEPING ADITS OPEN AND MANY CAVED DURING MINING PERIOD ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-NOV-1985 | Leonard, Kenneth R. (Elliott, R. L.) | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.