The pilot and three passengers were killed when a small airplane heading back to South Dakota after a Texas cattle sale crashed into a wind farm in foggy weather.
Steve Stengel with Florida-based NextEra Energy Resources says the wreckage was found on the site of the South Dakota Wind Energy Center.
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That operation south of Highmore has 27 turbines that are about 213 feet tall, plus the length of the blade.
The FAA says the single-engine Piper found Monday was registered to Donald J. "DJ" Fischer of Gettysburg, South Dakota.
The four people onboard were flying back from Texas.
The National Weather Service in Aberdeen says fog and low clouds combined for reduced visibility in the area Sunday night. Winds were out of the east at about 15 to 25 mph and there were scattered showers, some of them heavy.
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