Watershed
From HydroWiki
A watershed is an area of land where all water drains to the same river or lake.
Source: http://ga.water.usgs.gov/edu/watercycleevaporation.html
A watershed is an area of land where all water drains to the same river or lake.
Source: http://ga.water.usgs.gov/edu/watercycleevaporation.html