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Geography

How Paleochannels Guide Modern Groundwater Recharge Zones

Quick fact

Some of the world's most productive groundwater wells are located over paleochannels—buried rivers that can be thousands of years old—because their porous sand and gravel fill still conducts water far more efficiently than the surrounding rock or clay.

Why this is interesting

Imagine an ancient river that flowed thousands of years ago, now buried under your feet. Could that river still influence the water you drink today?

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How Paleochannels Guide Modern Groundwater Recharge Zones

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