Note: If you are an Authorized User for this credit card account you'll need to have the Secure Transaction Code (STC) on hand. If you need an STC, the Primary Cardmember must sign on and request it using the Manage Authorized User function or call Customer Service at 800-347-4934 for assistance.
The last part of a river. A river usually ends by flowing into an ocean, a lake or a bigger river. The place where the river flows out into a bigger body of water is called the 'mouth' of the river. As a river flows towards its mouth, the countryside around the river often changes from hilly to flat.
The transition between river and ocean, bay or lake is known as a delta. Most rivers have a delta, an area where the river divides into many channels and river water mixes with sea or lake water as the river water reaches the end of its journey.A famous example of a delta is where the Nile River meets the Mediterranean Sea in Egypt, called the Nile Delta. river grows larger as it collects water from more tributaries. Streams usually form rivers in the higher elevations of mountains and hills. The areas of depression between hills or mountains are known as valleys.