Where does this come from, and can I check it?

That short gap made the Channel Tunnel possible and keeps ferries busy today. The figure is taken from NASA Earth Observatory, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

Is this really a world geography fact?

Yes. It sits on the World Geography shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.

What else can I read about it?

The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.

Mondo Knows Facts

The Dover Strait is 33 kilometres wide

That short gap made the Channel Tunnel possible and keeps ferries busy today The strait separates Kent from the Pas de Calais and carries some of the heaviest shipping traffic in the world. The tunnel runs about 50 kilometres, with roughly 38 of those beneath the sea. Its chalk beds were chosen because they are relatively easy to bore and largely watertight. It sits in Mondo's world geography collection, one of 200 facts that each trace back to the reference below.

Where this comes from

NASA Earth Observatory

Facts that can change over time are reviewed and updated. If something here looks wrong, Mondo would rather know than be confidently incorrect.

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More facts like this

Magellan found a sea route past South AmericaBefore the Panama Canal opened, ships rounded South America through this 570 kilometre passage The Dardanelles has been a strategic waterway for millenniaThe 61 kilometre channel links the Aegean to the Sea of Marmara and is only a few kilometres wide The Torres Strait is shallow and full of reefsIt separates Cape York from New Guinea and is only about 150 kilometres across at its widest The Strait of Gibraltar separates Europe and Africa by fourteen kmConnecting the Atlantic Ocean to the Mediterranean Sea, the strait narrows to fourteen kilometres.The Malacca Strait narrows to under three kilometresShipping squeezes through the Phillips Channel near Singapore, the tightest point on the route Bab el-Mandeb means the Gate of TearsThe name is often explained by the hazards of the narrow passage between two rocky shores

Tags: straits, europe, engineering

The Dover Strait is 33 kilometres wide: the short answers

Where does this come from, and can I check it?: That short gap made the Channel Tunnel possible and keeps ferries busy today. The figure is taken from NASA Earth Observatory, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a world geography fact?: Yes. It sits on the World Geography shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.