DCHP-1 Online
bank diggings Placer Mining, Hist. 
gold-mining claims on a stream bank rather than on a bar (def. 1) or bench.
See also: bar ((n.)) (def. 1) bench bench diggings dry diggings
- 1858 Within the fortnight bank diggings have been discovered extending on both sides of the Fraser to the foot of the mountains.
- 1860 Above Hill's Bar they have struck bank diggings which are paying very good wages.
- 1858 Within the fortnight bank diggings have been discovered extending on both sides of the Fraser to the foot of the mountains.