This lake spans Benton and Klickitat counties.
Umatilla Lake (reservoir) was created in 1971 when the John Day was built onto the Columbia River. The huge reservoir covers 52,000 surface acres, re...
Umatilla Lake is actually the John Day Dam Reservoir on the Columbia River. The huge reservoir covers 52,000 surface acres and reaches depths of 145 feet. The reservoir contains many different fish s...