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  1. Watersheds – Section – Philadelphia Water Department

    Philadelphia’s entire land surface ultimately drains to one of seven watersheds that are tributaries to the Delaware River. The Darby-Cobbs Watershed drains approximately 77 square miles, including …

  2. Tookany/Tacony-Frankford Watershed - Philadelphia, PA

    Tookany/Tacony-Frankford watershed is a 30 square mile area located in southeast Pennsylvania, both within and just outside the city of Philadelphia. It is one of Philadelphia’s five main watersheds, all of …

  3. What is a watershed? - NOAA's National Ocean Service

    What is a watershed? It’s a land area that channels rainfall and snowmelt to creeks, streams, and rivers, and eventually to outflow points such as reservoirs, bays, and the ocean.

  4. WATERSHED Definition & Meaning - Merriam-Webster

    The watershed year for science fiction must be 1968, when Stanley Kubrick's 2001: A Space Odyssey appeared, not only dramatically expanding for this kind of motion picture the potentials of film …

  5. Introduction to Watersheds - Penn State Extension

    May 12, 2025 · What Is a Watershed? A watershed is the land area that drains into a stream or other body of water. Gravity pulls water downhill from rainstorms, snow melt, and even groundwater …

  6. Watersheds and Drainage Basins | U.S. Geological Survey

    Jun 8, 2019 · A watershed is an area of land that drains all the streams and rainfall to a common outlet such as the outflow of a reservoir, mouth of a bay, or any point along a stream channel.

  7. What is a watershed and why does it matter? - Washington State ...

    A watershed is an area of land where all the water—whether from rain, snowmelt, or springs—drains into a common water body, such as a river, lake, or ocean.

  8. What is a watershed? It's the land that water flows across or under on its way to a stream, river, or lake. How do watersheds work? The landscape is made up of many inter connected basins, or …

  9. Watershed - National Geographic Society

    Apr 15, 2024 · A watershed is an area of land that drains rainfall and snowmelt into streams and rivers.

  10. What is a Watershed? Understanding Its Definition and Importance

    Nov 2, 2023 · A watershed is a topographically defined area that is drained by a stream system, forming a hydrologic unit used for managing natural resources. Imagine a large basin where all the water …