"Klamath dedication to labor and ownership causes all your Villagers to gather slightly more quickly."—In-game description
Klamath Work Ethos is a technology in Age of Empires III: The WarChiefs that can be researched at a Trading Post built on a Klamath settlement. Once researched, it increases the gather rate of Settlers, Coureurs des Bois, Settler Wagons, and Villagers by 5%.
Klamath Work Ethos is not very useful to civilizations that are unable to gather Export, unless stacked with Home City Cards and improvements that increase villager gather rates, and in long-running games such as Treaty games.