I read an article that said Yammouni or Yammouneh is Northwest of Baalbeck... not how far though. Also read about that past history of income to Syria and Hez via heroin and weed.
Got it, this map:
http://almashriq.hiof.no/lebanon/900/910/912/maps/mot-maps/english-map/eng-m03.html
Center right, a few klicks south of the switchbacks going west up the ridgeline, spelled "Yammoune"
Wider coverage here:
http://almashriq.hiof.no/lebanon/900/910/912/maps/mot-maps/