Alluvial gold mining and trade in NineteenthCentury
#0183;#32;6 In some areas, alluvial gold was worked by shafts sunk into river banks and reef mining may have developed from this technique; see, for example, The Rhodesian Mining Review, 19 02 1913, 185. For further details of alluvial mining methods, see I. R. Phimister, Placer mining in South Central Africa, unpub. research paper.