In central Vietnam the Annamese Cordillera operates parallel to the Coastline, with a number of peaks increasing to elevations above 6,000 ft (one,800 metres). Quite a few spurs jut to the South China Sea, forming sections of the coast isolated from each other. Communication over the central ranges is hard. https://landenvgpyg.vidublog.com/30258322/the-f8bet-diaries