(CNN) -- Once a year, several planes fly above Utah lakes and release hundreds of fish raised only to be dropped out of a plane.
Their journey begins at a state hatchery in Kamas. The fish are fed by a man named Ted Hallows. He supervises them until they're ready to be released into the wild. Hallows said, "We're in charge of coordinating the aireal stock statewide."
From the Uinta's to the La Sal, wildlife experts with the DWR make sure the lakes are filled with Utah's native fish. And the only way to get there is by plane. Hallows said, "In June and July we aerial stock Tiger Trout, a lot of Brook Trout, Rainbow Trout and Splake and then in the fall we put Cutthroat Trout and Arctic Graying in the lakes."
The fish come out of a compartment at the bottom of the aircraft. Hundreds, sometimes up to a thousand three-inch fingerlings are set free but they don't always make it into the water, alive. Hallows said, "They kind of flutter down, so they don't impact very hard, they flutter with the water and they do really well."
While a small percentage of them die, fisherman are happy to hear someone is keeping the state's lakes stocked. Fisherman George Chao said, "I like the idea and concept of it. From a biologist standpoint, certain areas of the high Uintas, browns will obviously do well, cutties will do okay depending on the oxygen, overall I think for recreational fishermen it's an awesome thing, because it's almost Darwinian, you take the fish whoever survives, survives and the other fish will find its way out."