| 1. | The reservoir sits in a natural depression, surrounded by dams in most directions.
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| 2. | The junction of the Potomac River with the Anacostia River occurs in a natural depression.
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| 3. | The lake is part of a natural depression and is fed by water by channel.
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| 4. | The lake is shallow and intermittently filled by flooding that forms in a natural depression.
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| 5. | The Lagoon is in a basalt plain and originally was a swamp in a natural depression formed volcanic activity.
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| 6. | On the northeast corner of the province, a natural depression forms an extensive salt lake called Laguna Mar Chiquita.
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| 7. | "There's a natural depression.
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| 8. | Enhancing the value of the Haud are the natural depressions that during periods of rain become temporary lakes and ponds.
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| 9. | The storage was formed by building an embankment across the outlet of a natural depression known as the Grahamstown Moors.
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| 10. | The dam has a large natural depression which collects water from the mountains located on the eastern side of the dam.
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