Hokkien dialects distribution map.
  Northern
  North-East transitional
  Eastern (Amoy dialect)
  North-South transitional
  Southern
  South-West transitional
  Western
  Hokkien-Datian transitional (Chiūⁿ-éng dialect 上涌話)
  Hokkien-Hinghwa transitional (Thâu-pak dialect 頭北話)
Based on local annals of each county and town, especially on:

安溪縣志 方言卷
華安縣志 方言卷
龍海縣志 方言卷
德化方言志
Own work
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