These are the ruins of “quicksilver” (mercury) mines.
In operation from 1847 to 1976, these mercury “quicksilver” mines were highly important during the California Gold Rush, since mercury was used to extract gold from ore.
These are the ruins of “quicksilver” (mercury) mines.
In operation from 1847 to 1976, these mercury “quicksilver” mines were highly important during the California Gold Rush, since mercury was used to extract gold from ore.