El Dorado ? A monster of the deep lives in El Dorado Lake in southeast Kansas.

Kansas wildlife officials say they caught a flathead catfish weighing at least 80 pounds last week while measuring and weighing fish.

Craig Johnson, the lake’s fisheries biologist, says the flathead was caught Friday while he and others were electro-fishing at the lake. They send jolts of electricity into the water to stun blue catfish, which are weighed and then released back into the water.

The shocking boat was in water about 30 feet deep over the old Walnut River channel when the flathead floated to the surface. It was placed in a tub of water until it recovered and then released.

The Wichita Eagle reports that a 123-pound catfish was caught at Elk City Lake in 1998.