Mudlark

Someone who scavenges for items of value on the shores of rivers

A mudlark is someone who scavenges the banks and shores of rivers for items of value, a term used especially to describe those who scavenged this way in London during the late 18th and 19th centuries. The practice of searching the banks of rivers for items continues in the modern era, with newer technology such as metal detectors sometimes being employed to search for metal valuables that may have washed ashore.

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