The Great Feeder Headgates, an engineering accomplishment in their day (1895), have served the farmers of Southeastern Idaho
well for over 100 years.
The Eagle Rock Canal, which is taken out of the Snake River close to, but slightly farther upstream, from the Great Feeder
Headgates was installed earlier.
There are four canal headgates in the Snake River just upstream from the Great Feeder Headgates. They are the Eagle Rock,
Farmers Friend, Anderson and Riley canals. The Riley ditch, which is above the Anderson canal, continually washed out and
ran into the Anderson canal so the two canals were combined into one irrigation district called the Progressive Irrigation