# Backshore

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Part of a beach inland of the high water foam lines

The **backshore** area of a beach extends from the limit of high water [foam lines](/source/Foam_line) to [dunes](/source/Dune) or extreme inland limit of the beach.[1] It is only affected by waves during exceptional high tides or severe storms.[2]

[Sediments](/source/Sediment) in this area are well-sorted and well-rounded. Its grain sizes are mainly coarse sand and medium sand, which are larger than that in littoral barrier dune. The sedimentary structures include parallel bedding and low-angle [cross-bedding](/source/Cross-bedding).

## References

1. **[^](#cite_ref-1)** This article incorporates [public domain material](/source/Copyright_status_of_works_by_the_federal_government_of_the_United_States) from *[Dictionary of Military and Associated Terms](/source/Department_of_Defense_Dictionary_of_Military_and_Associated_Terms)*. [United States Department of Defense](/source/United_States_Department_of_Defense).

1. **[^](#cite_ref-2)** Whittow, John (1984). *Dictionary of Physical Geography*. London: Penguin, 1984, p. 47. [ISBN](/source/ISBN_(identifier)) [0-14-051094-X](https://en.wikipedia.org/wiki/Special:BookSources/0-14-051094-X).

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