| 31. | There he engaged in placer mining and developed a life ling friendship with Fenton M . Slaughter.
|
| 32. | John Reed started placer mining, and later underground mining on his property and became a wealthy man.
|
| 33. | Since then, small-scale mining, reworking of old mine dumps, and placer mining has continued in the region.
|
| 34. | The Montrose Placer Mining Company was formed to mine gold from placer deposits along the Dolores River.
|
| 35. | Hughes moved to southern Arizona in 1876 when he began placer mining in the Santa Rita Mountains.
|
| 36. | Reed first developed placer mining on his property, then underground mining, and became wealthy from the gold.
|
| 37. | After the sluice-box stage, placer mining may become increasingly large scale, requiring larger organisations and higher capital expenditures.
|
| 38. | Ghana Consolidated Diamonds uses a strip and mine method at their placer mine in Akwatia, using Manitowoc draglines.
|
| 39. | It is not like placer mining.
|
| 40. | During the last glacial period native gold was freed from the host rock and became available for placer mining.
|
