The purpose of this paper is to relate the economic history of the Great Feeder Canal and preform an analysis on its flow of water. Historical chapters are portrayed chronologically and reveal in sight into the rustic irrigation problems that faced those individuals who developed the Great Feeder Canal. The latter part of the paper entails an economic analysis indicating that the Great Feeder Canal is unique in that it uses nearly twice as much irrigation water per acre as other canals in Southeastern Idaho, yet it tends to maximize net social benefits.