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TF 1999 Exploring Caves 1€¦ · ost American caves are big holes that form in limestone rock. The holes begin as cracks in the limestone. Water flows down the cracks and dissolves

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Page 1: TF 1999 Exploring Caves 1€¦ · ost American caves are big holes that form in limestone rock. The holes begin as cracks in the limestone. Water flows down the cracks and dissolves
Page 2: TF 1999 Exploring Caves 1€¦ · ost American caves are big holes that form in limestone rock. The holes begin as cracks in the limestone. Water flows down the cracks and dissolves
Page 3: TF 1999 Exploring Caves 1€¦ · ost American caves are big holes that form in limestone rock. The holes begin as cracks in the limestone. Water flows down the cracks and dissolves
Page 4: TF 1999 Exploring Caves 1€¦ · ost American caves are big holes that form in limestone rock. The holes begin as cracks in the limestone. Water flows down the cracks and dissolves