Bay History
Chesapeake Bay Gateways Network

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The Chesapeake Bay Region came about through millions of years of change, with natural forces and, eventually, human activities both playing major roles in creating the diverse aquatic and land-based environments we see in the Bay ecosystem. Today's Bay faces challenges on several fronts, from the need to restore and protect natural systems and habitats to accommodating the requirements of an ever-burgeoning human population.

Chesapeake Bay timeline

Explore 40 million years of Bay history with the three timelines. The three interrelated timelines not only provide a snapshot of the intertwined natural and human events that have shaped the Bay Region's past and present, but also provide perspective to help guide efforts to wisely manage its future.

Chesapeake Bay Gateways Network - Comments or Questions: Call: 1-800-YOUR-BAY