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Encyclopedia Britannica article on Caves school.eb.com
Facts4me.com article - CAVE facts4me.com Facts4Me is and online reference too for primary readers of English. This site is wrtiite by teachers and is committed to offering high-quality, educationally-sound information in an ad-free, child-safe environment.
PebbleGo article - Caves www.pebblego.com
Cave article from National Geographic science.nationalgeographic.com These large underground chambers can take hundreds of thousands of years to form.
Onondoga Cave State Park - links to geology, history, habitats and animals. www.mostateparks.com Missouri State Parks
Onondoga Cave State Park - links to geology, history, habitats and animals. www.mostateparks.com Missouri State Parks
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