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Look at the surrounding terrain and think what water would do when it rains. No place is perfectly flat for very long, so suface water will flow away from some place and gather in others. Somepla...
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#1: Attribution notice removed
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System
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2020-06-03T15:54:20Z (over 4 years ago)
Source: https://outdoors.stackexchange.com/a/9871 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/