There are many temples and shrines here in Japan and commonly you will see some huge trees growing around them. The one in the photo is at the Iwatake shrine on the back road to Tsugaike. If you get a chance you should stop there and get a close up view of these mammoth monoliths. You will be impressed.
From wikipedia. The Cryptomeria is a monotypic genus of conifer in the cypress family Cupressaceae formerly belonging to the family Taxodiaceae; it includes only one species, Cryptomeria japonica (syn.: Cupressus japonica L.f.). It is endemic to Japan, where it is known as Sugi (Japanese:杉). The tree is often called Japanese Cedar in English, though the tree is not related to the cedars (Cedrus).
It is a very large evergreen tree, reaching up to 70 m (230 ft) tall and 4 m (13 ft) trunk diameter, with red-brown bark which peels in vertical strips. The leaves are arranged spirally, needle-like, 0.5–1 cm (0.20–0.39 in) long; and the seed cones globular, 1–2 cm (0.39–0.79 in) diameter with about 20–40 scales.