Springs: Springs and the water cycle
Detailed Description
What is a spring?
A spring is a water resource formed when the side of a hill, a valley bottom or other excavation intersects a flowing body of groundwater at or below the local water table, below which the subsurface material is saturated with water. A spring is the result of an aquifer being filled to the point that the water overflows onto the land surface. They range in size from intermittent seeps, which flow only after much rain, to huge pools flowing hundreds of millions of gallons daily.
Sources/Usage
Credit: Benutzer:(WT-de)_Mistoffeles, Wikimedia, Creative Commons License
