Final answer:
The Valley of Ashes is located between West Egg and New York City in 'The Great Gatsby' and symbolizes moral and social decay.
Step-by-step explanation:
The Valley of Ashes is located between West Egg and New York City. This desolate and gray area is described in F. Scott Fitzgerald's novel 'The Great Gatsby' and symbolizes the moral and social decay of America in the 1920s. It serves as a contrast to the extravagant wealth and parties in West Egg and East Egg.