Question: Where did pluvial lakes form during the last ice age?
Answer: southwestern United States
Disambiguated annotations:
qaPairs: question: What country did pluvial lakes form in during the last Ice Age?
answer: United States
question: What region of the United States die pluvial lakes form in during the last ice age?
answer: Southwestern
question: What states did pluvial lakes form in during the last Ice Age?
answer: Utah and California