A river basin is the land water flows across or under on its way to a river. Just as a bathtub catches all the water that falls within its sides, a river basin sends all the water falling on the surrounding land into a central river and out to an estuary or to the sea.
Much of the map pictured below is dominated by the massive catchment area for the Mississippi River, including the Upper and Lower Mississippi River Basins, along with the Missouri River Basin and the Arkansas-White-Red Basin, as seen in pink.
There are 250,000 rivers running through America. Rivers have played an integral part in the history of the human race’s development from the Nile to the Mississippi. It shouldn't surprise anyone that there are countless examples of innovative and unique ways we have used and adapted to our rivers. There are too many examples to count, but here is a very interesting one.
The Spruce Street Harbor Development in Philadelphia, Pennsylvania, is an excellent example of the possibilities of a publically accessible riverfront destination. Named one of the best places to visit in Philadelphia by national press, Spruce Street Harbor Park sustained by colorful hammocks, floating gardens, beautiful lights, refreshing craft beer, and food from popular Philly restaurants, making it a summer gathering space for locals and visitors alike (Delaware Waterfront).