Age of Empires Series Wiki

Villagers gather Coin from Mines faster.
—In-game description

Flume and Ditching is a technology in Age of Empires III: The Asian Dynasties that can be researched by Asian civilizations at the Market once the Commerce Age is reached and Blanket Filters has been researched. Once researched, it allows villagers to gather coin from mines 10% faster.

Civilization differences[]

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Market technologies in Age of Empires III
European/Federal American
FoodHunting Dogs AOEIII Hunting Dogs · Steel traps Steel Traps
WoodGang Saw Gang Saw · Log flume Log Flume · Circular saw Circular Saw
CoinPlacer Mines Placer Mines · Amalgamation Amalgamation
OtherBlunderbuss Blunderbuss · Great Coat Great Coat · Frontiersmen Frontiersmen
Native American
FoodHunting Dogs AOEIII Hunting Dogs
WoodLumber Ceremony Lumber Ceremony · Forest People Ceremony Forest People Ceremony · Forest Spirit Ceremony Forest Spirit Ceremony · Deforestation Deforestation
CoinPlacer Mines Placer Mines · Fur dressing Fur Dressing
OtherSpirit Medicine Spirit Medicine · New Year Festival New Year Festival · Inti Festival Inti Festival
FoodHunting Eagles Hunting Eagles · Professional Hunters Professional Hunters · Hanami Parties Hanami Parties · Yozakura Lanterns Yozakura Lanterns
WoodWater Wheel Water Wheel · Regenerative Forestry Regenerative Forestry · Circular saw Timber Trade · Tropical Timber Trade Tropical Timber Trade
CoinBlanket Filters Blanket Filters · Flume and Ditching Flume and Ditching
OtherEastern Medicine Eastern Medicine · Civil Servants Civil Servants · Imperial Bureaucracy Imperial Bureaucracy
WoodHardened Iron Axes Hardened Iron Axes · Selective Logging Selective Logging · Blackwood Trade Blackwood Trade · Ebony Exports Ebony Exports
CoinPlacer Mines Placer Mines · Amalgamation Amalgamation · Gold Purification Gold Purification
OtherRoyal Hunters Royal Hunters · Tribal Societies Tribal Societies · Royal Banquet Royal Banquet · Transhumance Transhumance · Cow Loans Cow Loans