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It is a natural river and is known to have been there for at least 10,000 years - although on a slightly different course.
All natural (except for any flood defense systems)
No. It has been there for thousands of years.

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12y ago
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12y ago

There are some man made rivers but very few, most rivers are natural so it's safe to say that rivers are natural.

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11y ago

It is a natural river. However - man has 'shaped' it to his own devices over the centuries

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15y ago

Virtually all are

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8y ago

The St. Lawrence river is natural.

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Q: Is the Ohio River man made or natural made?
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