Describe the stages of gold mining in California (i.e. how during the 1850s miners quickly exhausted the easily obtained placer gold deposits and increasingly They should consider the tools/equipment needed, technological difficulty, labor,
context for historic mining resources in the black hills and south dakota
Dec 28, 2017 mine dumps, placer workings, industrial features, and period buildings. Modern . and places involved with the production of gold, other metals, and coal. As such mobility, such as vehicles and portable mining equipment.