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• 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. It is also called as the drainage basin or catchment. The largest watershed in the United States is the Mississippi River Watershed, which drains 1.15 million square miles from all or parts of 31 U.S. states and two Canadian provinces stretching from the Rockies to the Appalachians.(NOAA)
• Some watersheds: Mississippi River, Merrimack River, Colorado River, Ottawa River, Amazon River, Nile River, Ganges-Bramaputra, Indus River, Yangtze River, China, Murray-Darling River
• Ecozone: A large geographical region having a distinct biodiversity of flora and fauna.
• Some ecozones: Canada, Europe, India, China, South America, Australia

1. Postal address format: Number, Street name, Town, State.
   Enter the postal address of interest using: ArcGIS map
2. Landmark: Find a natural watermark/landmark such as a pond, lake, or mountain.
3. Brook: Identify the small brook or river.
4. River: Connect with the big river that empties into the ocean.
5. Ecozone: Associate with the ecozone.
   Zoom out until you see the entire country, if necessary.
6. Continent: Recognize the continent.
7. Ecological address format: Landmark, Brook-River, Ecozone, Continent.