also: たにそこ
noun
valley floor; bottom of a gorge; bottom of a ravine
Refers to the lowest part of a valley, gorge, or ravine. Often used in geographical descriptions or metaphorically for a low point.
谷底には小さな川が流れていた。
A small stream was flowing at the bottom of the valley.
不況で景気は谷底にある。
Due to the recession, the economy is at rock bottom.
Compound of 谷 (tani, 'valley') and 底 (soko, 'bottom'). The reading たにぞこ results from rendaku (sequential voicing) of そこ to ぞこ.