Mining in Colorado, a history of discovery, development, and production [unknown]

C.W. Henderson
1926 USGS professional paper   unpublished
By CHARLES w. HENDERSON 1 HISTORICAL SKETCH THE FIRST DISCOVERIES OF GOLD Spanish explorers 1 a appear not to have visited the region that is now eastern Colorado until the middle of the seventeenth century, but traversed southern. central, and western Colorado in 1706 1719 1720 .1765 ' ' ' ' 1776, and 1779. A small party of Frenchmen, headed by two brothers named Mallet, crossed the•eastern part of the State from north to south in 1739. The American explorers that left records of their
more » ... in the region were Pike, in 1805 and 1806 • Long in 1820 • B 'II ' ' ' onneVI e, in 1~832;
doi:10.3133/pp138 fatcat:2luowpy4cje5lbbcn5hdrqgqsq