An electric jackhammer helps break the quarry into workable blocks. Wind helps with the heat but makes work tough.
Credit: G Wilbert, Norman, OK and B Davis, Louisville, KY
Негізгі бет Discovery Pool: Cisco Mammal Quarry
An electric jackhammer helps break the quarry into workable blocks. Wind helps with the heat but makes work tough.
Credit: G Wilbert, Norman, OK and B Davis, Louisville, KY
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