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Aerial shot of beautiful blue lagoon at hot summer day with sailing boat. Top view.

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This diagram shows a sample watershed laid out across the landscape. The watershed divide travels along ridges in the landscape. Headwaters and riparian wetlands drain toward a river and stream. Lines show the water table as it lies at and beneath the surface. Graphics representing cities, farms, and other structures show that human land use affects watershed quality.
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Graphic: How Watersheds Work

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This diagram shows a sample landscape with common watershed features. Watershed boundaries are labeled, as well as human-built land uses that affect water quality in a watershed.

Educators can use this as a standalone image or include it in a slideshow or resource packet. The diagram is available as a free download through Flickr at multiple resolution/sizes.

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An underwater photo of a natural stream filled with rocks and vegetation.
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Ecosystems, Human Impacts, Water Quality, Watersheds

Database: How’s My Waterway

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image of a stream in a forest with the words 'understanding the great lakes watershed' and the new york sea grant logo in the middle.
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Environmental Education, Science
Ecosystems, Water Quality, Watersheds

Video: Understanding the Great Lakes Watershed

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Satellite image of the Great Lakes, including the turbid waters of Lake Erie
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Environmental Education, Geography, Science
Watersheds

Lesson: How Well Do You Know the Great Lakes?

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