<P> In North America, placer mining was famous in the context of several gold rushes, particularly the California Gold Rush and the Colorado Gold Rush, the Fraser Canyon Gold Rush and the Klondike Gold Rush . </P> <P> Placer mining continues in many areas of the world as a source of diamonds, industrial minerals and metals, gems (in Myanmar and Sri Lanka), platinum, and of gold (in Yukon, Alaska and British Columbia). </P> <P> An area well protected from the flow of water is a great location to find gold . Gold is very dense and is often found in a stream bed . Many different gold deposits are dealt with in different ways . Placer deposits attract many prospectors because their costs are very low . There are many different places gold could be placed, such as a residual, alluvial, and a bench deposit . </P> <P> Residual deposits are more common where there has been weathering on rocks and where there hasn't been water . They are deposits which have not been washed away yet or been moved . The residual usually lies at the site of the lode . This type of deposit undergoes rock weathering . </P>

Which type of gold deposit is found in streams