| 翻訳と辞書 | Happy Valley Airport| Happy Valley Airport  : ウィキペディア英語版 | 
 
 Happy Valley Airport  is a closed airport located 2 miles southeast of Happy Valley in Clackamas County, Oregon, USA. It was constructed  in 1964 as "Troh's Nest" airfield by Hank Troh after he closed his first airport. (【引用サイトリンク】title=Our Landfill Legacy ) As of June 2009, aerial photos of the airport show that its runway is closed with X's painted on the asphalt. Additionally, the runway is now being used as a driveway for a large house built at its southern end. As such it is not advised for aviation use except in an emergency.
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 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』
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