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18 trillion gallons

The Chesapeake Bay holds more than 18 trillion gallons of water.

84 degrees Fahrenheit

Water temperatures in the Bay fluctuate widely throughout the year, reaching as high as 84 degrees in summer.

Filtering drinking water

Forests and trees help filter and protect the drinking water of 75% of watershed residents.

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284,000 acres of tidal wetlands

Approximately 284,000 acres of tidal wetlands grow the Chesapeake Bay region. Wetlands provide critical habitat for fish, birds, crabs and many other species.

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4,480 square miles of surface area

The surface area of the Bay and its tidal tributaries is approximately 4,480 square miles.

3.4 miles wide

The narrowest point of the Chesapeake Bay measures 3.4 miles, and is located near Aberdeen, Maryland.

70 acres of forest lost each day

Forests cover 55% of the Chesapeake Bay watershed. Between 1990 and 2005, the watershed lost an estimated 100 acres of forest land each day. While this rate fell in 2006 to an estimated 70 acres per day, this rate is still unsustainable.

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Six states and the District of Columbia

The Chesapeake Bay watershed stretches approximately 524 miles from Cooperstown, New York, to Norfolk, Virginia. It includes parts of six states—Delaware, Maryland, New York, Pennsylvania, Virginia and West Virginia—and the entire District of Columbia.

Longest river fully within Maryland

The 110-mile-long Patuxent River is the longest river to flow exclusively within the borders of Maryland.

Scooping the poop

Half of pet owners always pick up after their pet, but one-third of pet owners seldom or never do so. Pet waste contains bacteria that can harm human health and contaminate the water we use for drinking, swimming and fishing.

Formally recognized tribes in Maryland

The State of Maryland has formally recognized three tribes: the Piscataway Indian Nation, Piscataway Conoy Tribe and the Accohannock Indian Tribe.

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6,282,718 acres of greenspace

There are 6,282,718 acres of accessible green space within the Chesapeake Bay watershed.

100,000 smaller tributaries

The Chesapeake Bay watershed has 150 major rivers and streams, but contains more than 100,000 smaller tributaries.

200 miles long

The Bay itself is about 200 miles long, stretching from Havre de Grace, Maryland, to Virginia Beach, Virginia.

11,684 miles of shoreline

The Bay and its tidal tributaries have 11,684 miles of shoreline—more than the entire U.S. west coast.

1,800 local governments

There are nearly 1,800 local governments in the Bay watershed, including towns, cities, counties and townships.

Litter bugs

Nine in ten watershed residents never toss food wrappers, cups or cigarette butts on the ground. Almost eight in ten watershed residents pick up litter when they see it.

10 U.S. presidents

There have been 10 U.S. presidents from the Chesapeake Bay watershed, including George Washington, Thomas Jefferson, James Madison, James Monroe, William Henry Harrison, John Tyler, Zachary Taylor, Woodrow Wilson, James Buchanan and Joe Biden.

3 years long

Blue crabs have a rapid growth rate and short life span. Few blue crabs live longer than three years.

500,000 Canada geese

More than 500,000 Canada geese winter in and near the Bay.

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What is a shallop?

Captain John Smith and his men sailed the Chesapeake Bay in a modest wooden boat called a shallop–an open wooden workboat such as a barge, dory, or rowboat that was small enough to row but also had one or two sails.

How we can fix water pollution

Eighty-six percent of watershed residents believe if people work together, water pollution can be fixed.