Oldest continuous ice core

According to Official Guinness Records,

The oldest continuous ice core covers 740,000 years of climate history. It measures 3,139 m (10,298 ft) in length and is 10 cm (4 in) in diameter. It was drilled at Dome C, Antarctica by the ten-nation EPICA (European Project for Ice Coring in Antarctica) and announced on 9 June 2004.

For a complete list of 2004 records, please visit 2004 Guinness Records in Antarctica.

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Other Antarctica records that might interest you:

• Oldest person to trek to the South Pole (unsupported)
• Lowest temperature endured by a bird
• Fastest bird - level flight
• Largest penguin colony
• First person to walk to both poles