noun
secluded station; out-of-the-way station; unfrequented station
A railway station in a remote, hard-to-reach location, often with very few passengers. Used in travel and railway enthusiast contexts.
秘境駅を訪れる鉄道ファンが増えている。
More railway fans are visiting secluded stations.
この秘境駅には一日に数本しか列車
Only a few trains a day stop at this out-of-the-way station.
Compound of 秘境 (ひきょう, 'unexplored region') and 駅 (えき, 'station'). The exact origin is uncertain, but it likely arose in railway enthusiast circles to describe extremely remote stations.