What is dry washing for gold?

Dry washing for gold is a technique used in arid environments to extract gold from soil or sediment without the use of water. Instead of panning or using sluices, dry washers utilize air flow to separate gold particles from lighter materials, relying on vibration and gravity. This method is particularly useful in regions where water is scarce, allowing prospectors to efficiently process large amounts of material in search of gold. The process involves feeding material into a machine that sorts and captures gold while discarding waste.