This is called alluvial gold. In a single season, hardworking prospectors may find in such deposits several pounds of gold, worth tens of thousands of dollars.
عندما بدأتَ تدرس الكتاب المقدس مع شهود يهوه ،‏ كنت مثل منقِّب يغربل ترسبات غنية بالذهب .‏