| Main Title |
Evolution of California's Placer Mining Landscape. |
| CORP Author |
Environmental Protection Agency, Seattle, WA. Region X. |
| Year Published |
1998 |
| Report Number |
EPA/910/R-98/003 |
| Stock Number |
PB2017-100828 |
| Additional Subjects |
Alaska ;
Placer mining ;
Environmental effects ;
Water quality ;
Mines ;
Metalliferous mineral deposits ;
Ore deposits ;
Metals ;
Placers ;
Mine wastes ;
Surface waters ;
Water sampling ;
Water chemistry ;
Turbidity ;
Dissolved solids ;
Suspended solids ;
Water temperature ;
Hardness(Water) ;
Electric conductivity ;
pH factor ;
Ecological concentration
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB2017-100828 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
168p |
| Abstract |
This report shows that hand placering for gold is a vanishing frontier enterprise from which it is now next to impossible to extract a living. Soon after the depression set in thousands of unemployed with their families attempted small-scale placer mining as a source of livelihood. "^ During the early years of the rush to the creeks the number of would-be miners failing to find gold was 20 times greater than the number of miners who had been successful in recovering an amount sufficient for even one sale. |
| Availability Notes |
Product reproduced from digital image. |
| PUB Date Free Form |
Apr 10 1998 |
| Category Codes |
68D | Water Pollution & Control; 48A | Mineral Industries; 71P | Refractory Metals & Alloys; 71N | Nonferrous Metals & Alloys; 91A | Environmental Management & Planning |
| Document Type |
NT |
| Medium |
CA | CA; DL | DL; PC | AC |
| Cataloging Source |
EPAESA |
| Origin |
NTIS |
| Type |
CAT |
