While the East Egg and West Egg represent old money vs new money

While the East Egg and West Egg represent old money vs new money, the Valley of Ashes is a place completely devoid of any wealth. It represents the poor, desolate region of New York City, occupied by mostly by working class people. The Valley of Ashes is physically a place of factories and industrial excess, causing it to be polluted: “ashes grow like wheat into ridges and hills and grotesque gardens; where ashes take the forms of houses and chimneys and rising smoke and, finally, with a transcendent effort, of ash-grey men, who move dimly and already crumbling through the powdery air.”