rear shrine
A smaller shrine building located behind the main shrine (本社) but dedicated to the same deity. Often found in shrine complexes with multiple structures.
See also: 本社
The rear shrine of this shrine is located in the forest behind the main hall.
奥社まで参拝するには、さらに山道を登る必要がある。
To worship at the rear shrine, you need to climb further up the mountain path.
Compound of 奥 (oku, 'inner' or 'rear') and 社 (sha, 'shrine'). The term is specific to Shinto shrine architecture.