Idaho is bordered by Washington and Oregon on the west, Montana and Wyoming on the east, Utah and Nevada on the south and the country of Canada (British Columbia) on the north side. Idaho is known for its vast mountainous landscapes, and it is literally covered from north to south by the Rocky Mountains. Idaho is also home to the massive Snake River, which comes from the Grand Tetons in Wyoming and eventually flows to meld with the Columbia River in Washington state. This river dissects Hell's Canyon, the deepest gorge in America, which lies the state's Oregon border, and flows through south central Idaho. This river provides a fertile plain which is the base for most of the state's agricultural industries, and the production of the potatoes for which Idaho is known. Idaho's state nickname is the "Gem State", despite also being known as the "Spud State", because of a man named who claimed it was derived from a term. 