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SlideshowReport
Salt marsh channels shown in cross section.
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Description
Fluctuating tides move water up and down these channels, or tidal creeks, once or twice each day. These daily movements of water gradually sculpt the salt marsh into a gently undulating landscape. Tidal creeks are generally bordered by natural levees. Beyond the levees are marsh flats, which may include small basins called salt pans that periodically collect water that eventually evaporates, leaving a layer of salt. This entire landscape is flooded during the highest tides and drains during the lowest tides.
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