Gold production continued until after the turn of the 20th century.
Gold production should peak between 1990 and 1995, he said.
Gold production had declined since the 1850s, but in the same year was still worth £5.2 million.
However, by 1944, gold production had ground to a halt as men were needed for the war effort.
Many companies sell their gold production in the futures market.
During the first half of the 1860s, Idaho's gold production was the third highest in the nation.
Gold production was not even sufficient to meet the demands of growing international trade and investment.
Gold production dropped sharply in 1985, the last year for which data is currently available.
Total gold production did not exceed $150,000 from this creek.
As a worldwide depression developed after 1928, gold production increased.