What Is a Watershed? Understanding Drainage Basins and Water Flow #3390745 (License: Personal Use)

This educational illustration depicts a typical watershed where precipitation (rain and snow) falls onto a forested landscape, flows overland or infiltrates into the ground as percolation, and eventually feeds streams and rivers through tributaries. The watershed divide-marked by elevated ridgelines-determines which direction water flows, separating adjacent drainage basins; groundwater accumulates in underlying aquifers, completing the hydrologic cycle.

Used in environmental science education, K-12 curricula, government agency outreach (e.g., EPA, USGS), and conservation websites to explain hydrology basics and watershed management. Matches user intent for learning foundational earth science concepts.