How big is Adirondack Park?
New York's Adirondack Park is bigger than Yellowstone, Yosemite, Glacier, Grand Canyon, and Great Smoky Mountains National Parks combined.
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Canyon Facts
Canyon facts and facts about canyons.
3 facts on this shelf
How big is the Grand Canyon?
The Grand Canyon in Arizona is about 277 miles long and about a mile deep.
What is Valles Marineris?
Valles Marineris, a canyon system on Mars, is about as long as the US is wide.