Hyōga Weapons Development Facility

The Hyōga Weapons Development Facility (氷河兵器開発施設, Hyōga Heikikaihatsu Shisetsu) is a research facility that is located in series of tunnels and caves, both natural and man-made, that runs beneath Hyōgagakure. It is currently run by Tsurara. The facility has a permanent staff that focuses on the development of new tools and ninjutsu for its shinobi to use. In addition to the permanent staff, some shinobi and civilians of the village are allowed to pursue their own projects and use facility resources with permission from Tsurara.

The facility is roughly split into two sections with the upper portions being reserved for weapons development and testing, while the lower levels are reserved for ninjutsu development. In the event of a village invasion, the facility can be sealed off from the outside world and possess numerous secret one way exits in the event an evacuation is needed.