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 |