back of card: HOMESTAKE MINE This sixty year old mine has a splendid record. It employs in its various departments more than 2,000 men, is operating at a depth of 5,000 feet and treats 4,100 tons of ore a day.
The images in the Lake County Discovery Museum collections may be viewed,
downloaded, and printed for personal or educational use, but commercial use
is prohibited without permission. Questions may be directed to the museum
at TeichArchives@lcfpd.org or (847) 968-3381.