Saucon Creek is located in the Lehigh River Watershed and is 71 Kilometers Squared.
Watersheds are terrestrial features of landscapes that contribute water to a lake or stream.
Water generally travels down slope in response to gravity although pressurized springs sometimes push water in the opposite direction. Watersheds are usually defined by the surface elevation of the land over which water would flow into the receiving water body. River watersheds typically consist of a collection of sub-watersheds for tributary streams. Along the length of a stream there will be changes to the aquatic environment because of watershed and stream processes. Natural materials are brought into the stream by tributaries and groundwater.