GENERAL GEOLOGY

Detailed explanation-1: -A watershed is an area of land that drains rainfall and snowmelt into streams and rivers.

Detailed explanation-2: -A watershed is the area of land (catchment area) that captures rain and snow, and then stores, filters, seeps or drains this water into a common water body (marsh, stream, river, or lake).

Detailed explanation-3: -For example, the watershed of a lake would include not only the streams entering that lake but also the land area that drains into those streams and eventually the lake. Drainage basins generally refer to large watersheds that encompass the watersheds of many smaller rivers and streams.

Detailed explanation-4: -A watershed consists of two major components, water and land, and is made up of many watercourses, including the land surrounding them, all of which drain into a specific point at a lower elevation (see Figure 1).

Detailed explanation-5: -A drainage basin is an area of land where water from rain or snow melt drains downhill into a body of water such as a river, lake, wetland or ocean. The drainage basin includes both the streams and rivers that convey the water as well as the land surface from which water drains into those channels.