Question: Which of the US National Parks in California were previously a National Monument?
Categories: History
Geography
Relevant Wikipedia pages:
title: List of national parks of the United States
title: Channel Islands National Park
title: Death Valley National Park
title: Joshua Tree National Park
title: Kings Canyon National Park
title: Lassen Volcanic National Park
title: Pinnacles National Park
title: Redwood National and State Parks
title: Sequoia National Park
title: Yosemite National Park