Which of these U.S. states is nicknamed the Gem State?

以下哪个州被称为“宝石之州”？

The Gem State is the 14th largest, and it's bordered by Montana, Wyoming, Utah, Nevada, Washington and Oregon.

宝石州是美国第14大州，与蒙大拿州、怀俄明州、犹他州、内华达州、华盛顿州和俄勒冈州接壤。

Idaho is known as the Gem State. This is not because it has diamonds but because it believes it is the jewel of the western Rocky Mountains.

爱达荷州被成为宝石州，这并不是因为这里有宝石，而是因为该州自认为是洛杉矶山脉西部的一颗明珠。