placer mining meaning in Hindi

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The last large nugget uncovered by placer mining was discovered in 1896.
The main occupation of the settlers was mica mining; later placer mining.
It was used as a source of water for extensive placer mining.
Placer mining gave out by the 1860s, replaced by hard rock mining.
"Dredging " is a method for placer mining below the water table.
Hydraulic mining became the largest-scale, and most devastating, form of placer mining.
The brothers tried placer mining but soon opened a trading post.
Even the earliest photos are about bridge construction and placer mining.
From Nebraska he moved to the placer mines in the Dakotas.
Placer mining in the area continued into the later 19th century.

noun.