温おん泉せん源げん

noun

hot spring source; thermal spring source

Refers to the natural underground source or springhead that feeds a hot spring (温泉). Often used in geological, tourism, or onsen-development contexts.

• この地ち域いきには多おおくの温おん泉せん源げんがある。

  There are many hot spring sources in this area.

• 新あたらしい温おん泉せん源げんを掘ほり当あてた。

  They struck a new hot spring source.