What is another word for placers?
Pronunciation: [plˈe͡ɪsəz] (IPA) 
Placers are deposits of minerals or other valuable materials that have accumulated in natural bodies of water, such as rivers or beaches, and can be extracted using various mining techniques. Some synonyms for the word "placers" include alluvial deposits, streambed deposits, and riverbed deposits. Alluvial deposits refer to materials deposited by flowing water, while streambed and riverbed deposits specifically relate to minerals and other materials that have accumulated in the beds of streams and rivers. Other similar terms include beach and coastal deposits, gold rushes, and even the term drift mining, which refers to the technique of extracting minerals by excavating the debris deposited by glaciers.
