J. Christopher Haley · Manuel G. Bonilla · Richard F. Meyer · Warren E. Yeend · James J. Lienkaemper · William J. Perry
1983년 1월 · U.S. Government Printing Office
eBook
14
페이지
eBook 정보
This history of placer mining of the gold deposits of east central Alaska, near the town of Circle, covers its development from 1893 to date and includes a summary of the regional geology and of the gravels of each creek.