Two Imizu Shrines
There are two shrines in Takaoka-shi, Toyama-ken, with the name Imizu. They are both ichinomiya first shrine of Etchuu.
Imizu Jinja 射水神社
The first one we visited was on the high grounds of the former Takaoka-jyo castle. It is now a public park with woods and streams in the middle of town. The enshrined deity is Ninigi no mikoto, grandchild of Amaterasu (Amateru) of Ise Jingu. Also known as Futagami for his promotion of cultivating rice, harvesting of five grains, and increasing commerce. The shrine has an ancient and honorable origin. Other gosaishin are Ooyamakui no kami, Jinushi no kami, Kukurihime no kami, and Take-minakata no kami. Kukurihime no kami is none other than Shirayamahime, aunt of Amateru. Please note that the chigi is female-cut, and the only female kami enshrined here is Kukurihime Shirayamahime.
The photo below is from the pamphlet of Imizu Jinja. It shows the Takaoka-Jyo Koen in the foreground, former site of Takaoka Castle on a flat hill surrounded by the moat. The shrine is in the center, adjacent to the grassy lawn. In the background is Futagami mountain.
Futagami-Imizu Jinja 二上射水神社
The smaller Futagami-Imizu shrine lies at the southern foot of the Futagami mountain. Futagami mountain is shintaisan, the sacred object of worship, and the deity is Futagami-Okami. The shrine faces due south, and the Futagami yama is behind it in the north.
This is an old village shrine with an unspecified pedigree going back at least to the year 717. This shrine claims a miraculous 築山 Tsukiyama, constructed mountain, although we are not sure what it is. According to an old document called the Hakusan-ki, this was the original ichinomiya of Etchu but they lacked power to keep this position and lost it to the Imizu Jinja at Takaoka Jyo. As to who is the Futagami, various theories say Ninigi, Takeuchi, Amanomurakumo, and Oonamuchi.