| Deposit ID | 10037878 |
|---|---|
| MRDS ID | M045077 |
| Record type | Site |
| Current site name | South Fork Lewis River |
| Alternate or previous names | Mcmunn Placer |
| Geographic coordinates: | -122.31702, 45.81398 (WGS84) |
|---|---|
| Elevation | 229 |
| Location accuracy | 2000(meters) |
| Relative position | EAST FORK LEWIS RIVER 6 MI SOUTHEAST OF YACOLT |
Political divisions (FIPS codes)
Clark(county)
Washington(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Dole(quadrangle 1:24,000 scale)
Vancouver(quadrangle 1:100,000 scale)
Vancouver(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Lewis(hydrologic unit)
Lower Columbia(hydrologic accounting unit)
Lower Columbia(hydrologic subregion)
Pacific Northwest(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Washington | Clark |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Willamette | 004N | 004E | 21 | S2 | Washington |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Platinum Critical | Secondary |
| Materials | Type of material |
|---|---|
| Gold | Ore |
| Hematite | Ore |
| Limonite | Ore |
| Magnetite | Ore |
| Result | 0.126 GM/YD PT (0.00405 OZ/YD), 1.14 GM/YD AU (0.0367 OZ/YD). PT:AU=1:7 TO 1:10 |
|---|
| Model code | 119 |
|---|---|
| USGS model code | 39a |
| Deposit model name | Placer Au-PGE |
| Mark3 model number | 54 |
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Unconsolidated Deposit > Gravel |
| (1) | Upper Eocene volcanic rocks |
|---|
| General form | STREAM SEDIMENT DEPOSITS |
|---|---|
| Thickness | 9.14M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1895 |
| District name | South Fork Lewis River |
|---|
| Ownership category | Private |
|---|
| Type | Owner |
|---|---|
| Owner | Harvey Mcmunn |
| First year | 1912 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M045077 |
PARDEE, J.T., 1929, PLATINUM AND BLACK SAND IN WASHINGTON, IN CONTRIBUTIONS TO ECONOMIC GEOLOGY 1928: U.S. GEOLOGICAL SURVEY BULLETIN 805, P. 6-9.
PATTY, E.N., AND GLOVER, S.L., 1921, THE MINERAL RESOURCES OF WASHINGTON, WITH STATISTICS FOR 1919: WASHINGTON GEOLOGICAL SURVEY BULLETIN 21, P. 84-85.
MERTIE, J.B., JR., 1969, ECONOMIC GEOLOGY OF THE PLATINUM METALS: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 630, P. 101.
HUNTTING, M.T., 1955, GOLD IN WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 42, P. 118.
| Subject category | Comment text |
|---|---|
| Deposit | GOLD IS FOUND IN TERRACE AND STREAM GRAVELS WHEREAS PT IS FOUND ONLY IN THE STREAM GRAVELS. METALS OCCUR IN CRACKS AND CREVICES IN BEDROCK IN THE STREAM |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JAN-75 | Blair, Will N. | U.S. Geological Survey | |
| Updater | 01-JUL-91 | Peterson, Jocelyn A. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.