If youre a big fan of the outdoors, then Big Sky Country is the ideal American state for you. Montana is home to some great outdoor excursions, namely Yellowstone National Park which spreads into neighbouring state, Wyoming. Within the park is the Grand Canyon of Yellowstone with a massive waterfall. Also in the boundaries of Yellowstone is the Yellowstone Caldera, a supervolcano thats the largest on the continent. Its well worth taking up car hire in Montana to head out to the National Park and will also give you opportunity to cover the other parks and forest on the Western border of the state, depending upon the area youre visiting.