Related terms:
naturalis historia
hushing
dolaucothi
placer mining
overshot
reverse overshot
watermills
opencast
barbegal
during the gold rush
blockquote lang
south yuba
dolaucothi gold mines
gravel beds
slate creek
large tank
north yuba river
yuba river
sluice box
roman mining
across the empire
journal of roman studies
duris
other minerals
gold ore
Wikipedia sources:
Hydraulic mining
Placer mining
Yuba River
California Gold Rush
Dolaucothi Gold Mines
Gully
Hydraulics
Hushing
Roman engineering
Natural History (Pliny)
Context for words:
hydraulic
mining
|
|