Montana is located in the western region of the US. Canada provided Montana's northern border. Idaho is to the west. The Dakota's are to the east and Wyoming is to the south. Montana is the 4th largest state. It has a rich and varied geographical landscape that draws tourists, especially lovers of the outdoors who seek out hunting, fishing and camping opportunities. Attractions include Yellowstone National Park, Glacier National Park, Flathead Lake, the Missouri river and the site of the Battle of Little Bighorn. Montana's primary industries include microbrewing, lumber and mineral extraction. However, the economy primarily revolves around agriculture.