Yes, LS20A, Long Cheng or Long Tieng. One of the secret "non-existent" Air America airstrips.
Land on 32, takeoff 14 only - the 14 approach had a significant obstruction! :
I had never heard of Long Tieng until I recently read
Flying Through Midnight: by
John T. Halliday, in which this airstrip figures prominently. An excellent book, thoroughly recommended.
Some very good photos of Long Tieng, NKP and operations in Laos here:
NKP's Air Operations in Laos Photo Gallery by Thailand Dog Handlers at pbase.com
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