Department of the Treasury contains U.S. Mint and IRS, responsible for coining money, collect federal taxes, borrow and lend money to and from banks and foreign governments Department of Energy
The Ring of Steall, Mamores. The Ring of Steall is a real classic mountain route combining the traverse of four Munros with scrambling along narrow, rocky aretes. The route takes in An Gearanach, Stob Choire a Chairn, Am Bodach and then follows the Devils Ridge to Sgurr a'Mhaim. Terrain.
Like with the Tabby Gordo and the Ring Island, you can only get to that island using a teleporter. The teleporter can be found under a gold slime containing Rock Gordo. You need to burst it first though. That user's talking about the island, not the cave.