Where do streams originate?
Springs and runoff
Streams are the smallest stage of rivers. They originate close to springs and are often fed by water runoff following rain.
Most of the streams will connect together originating a progressively larger water flow until a river is formed.
Streams are frequent in mountains and can be permanent or temporary depending on the feeding sources. Temporary streams are also called creeks.
A particular form of streams is found in deserts where large water flows are quickly originated by sudden and violent rainfalls. These streams are called "Wadi" in North Africa and Arabia and "Wash" and "Arroyo" in Western US.
Another kind of stream is originated along the shore when seawater enters an inlet during the flood tide.