For millions of years, volcanic activity beneath the Earth’s crust has been turning rocks into granite. The rocks were uplifted, forming a small mountain range with small streams and creeks weaving their way through the valleys. Surface volcanoes erupted, covering the area in lava. The streams cut new paths. The land was again uplifted; streams and erosion cut canyons. Then the Earth cooled and froze. Glaciers filled the valleys, running down the rivers and cutting the canyons into wide valleys.
As the Ice Age retreated, the Sierra Nevada mountain range and Yosemite were left uncovered.
So how much do you know about this fantastic place? Can you answer these questions?
What was the longest glacier in Yosemite?
Are there any glaciers in Yosemite today?
How many meadows does Yosemite have?
What plant is among the largest and oldest living things on earth?
What is frazil ice?
Find out more about Yosemite National Park, and amaze your family and friends with these fun facts.
All measurements in American and metric.
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About Jeannie Meekins
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Published August 4, 2012
Education & Reference, Nature & Wildlife, Children's Books, Science & Math.