Last name meaning Ferris: This is an Anglicization of the Old Gaelic name O' Fearghusa - a compound of the Gaelic O (meaning grandson or male descendant) and the personal name Fergus, composed of the elements fear - a man and gus - vigour or force...
At other times, a confluence can be the location where two smaller streams or rivers merge to become the source for a new river. This is the case in Pittsburgh, Pennsylvania, where the Monongahela River and Allegheny River merge to create the Ohio River.
A river that meets the sea or a large lake may form a delta at its mouth: a triangle-shaped area of sediment with distributaries flowing across it. The area of water around a river mouth where seawater mixes with freshwater is called an estuary. The land around a stream is a valley.Valleys come in all sizes and have a variety of names, just like streams. The smallest streams, rills, run in tiny channels also called rills.he bottom end is its mouth. In between, the stream flows through its main course or trunk. Streams gain their water through runoff, the combined input of water from the surface and subsurface. Most streams are tributaries, meaning that they drain into other streams.