Virtual River - What Is A Watershed?

A watershed is like a giant, invisible funnel that collects rain and snow, funneling everything into one big river or lake.

Imagine your home has a big bowl-shaped roof. When it rains, the water slides down the slopes and gathers in the gutters, then drops into a single drainpipe. That is exactly how a watershed works. The land is shaped like a giant bowl. All the rain that falls inside that "bowl" flows toward the lowest point, which is usually a stream or river.

The edges of this "bowl" are called ridges or hilltops. Think of them as the lip of a mixing bowl. Water that lands on the lip slides off and goes somewhere else. Water that lands inside the bowl stays inside and travels toward the center. This means every drop of rain that falls in your neighborhood is on a one-way trip to the nearest big body of water.

Watersheds connect everything. If you drop a leaf into the street, it might travel through the storm drain, into a creek, then a river, and finally the ocean. It is like a team effort. Everyone living in the same watershed shares the same water path. If one person dumps trash in the creek, it affects the fish, the people downstream, and the whole system. We all drink from the same "bowl."