The Continental Divide is a tricky concept because many people think there is only one. In reality, a continental divide is simply a boundary that separates river systems that flow to different oceans. The most famous one in North America is the Great Divide, which runs along the Rocky Mountains and separates water flowing into the Pacific from water flowing into the Atlantic. However, North America actually has several major divides, including the Eastern Continental Divide and the Laurentian Divide. One of the most interesting spots is Triple Divide Peak in Montana, where a single drop of rain can split and eventually flow into three different oceans: the Pacific, the Atlantic (via the Gulf of Mexico), and the Arctic (via Hudson Bay).