Lost River Placer

The Lost River Placer is a tin mine located in Alaska.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Lost River Placer

Commodity

Primary: Tin
Secondary: Lead
Tertiary: Silver

Location

State: Alaska

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Analytical Data: INDICATED GRADES: 0.29 LB SN/CY, TR. AG IN HOLE H-6. 0.35 LB SN/CY, 0.04 LB PB/CY, TR. AG IN HOLE H-7, USBM RI 5520, P. 13.

Materials

Ore: Cassiterite
Ore: Galena

Comments

Comment (Deposit): THERE IS NO INDICATION THAT ANY OF THE TIN PRODUCED FROM PLACERS IN THE LOST RIVER MINE AREA CAME FROM LOST RIVER ITSELF. MOST, IF NOT ALL, PLACER TIN CAME FROM CASSITERITE CR. ; INFO.SRC : 1 PUB LIT

Comment (Deposit): THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.

Comment (Location): USBM RI 5520, FIG. 3 AND TABLE 2, CHURN-DRILL HOLES H-6 AND H-7. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Development): MINING SOMEWHERE ON LOST RIVER: 1966-67; USBM CHURN-DRILLING: 1956-57.

Comment (Deposit): INDICATED DEPTH OF MINING SECTION: 10.0 - 11.0 FT (INCLUDES 1.0 FT OF BEDROCK) INDICATED GRADE: 0.29 - 0.35 LB SN/CY.

Comment (Geology): MEDIUM COARSE GRAVELS ; MAJOR.UNITS: HOLE NO. H-7 HIT BEDROCK: DOLOMITE WITH CHLORITE, FLUORITE AND TRACE OF PYRITE. ; REG.COM: LODES ON CASSITERITE AND TIN CREEKS

References

Reference (Deposit): USBM RI 5520, P. 12-15, 23, TABLE 2, HOLE NOS. H6, 7.

Reference (Deposit): USGS BULLETIN 1374, P. 895.

Reference (Deposit): USGS OFR 77-796-B, P. 6, LOC. 32.

Reference (Other Database): BAG-MF-426-42

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