First undisputed overland journey to North Pole

According to Official Guinness Records,

The earliest indisputable attainment of the North Pole by surface travel over the sea-ice took place at 3 p.m. (Central Standard Time) on 19 April 1968, when expedition leader Ralph Plaisted (USA), accompanied by Walter Pederson, Gerald Pitzl and Jean Luc Bombardier, reached the pole after a 42-day trek in snowmobiles.

For a complete list of 1968 records, please visit 1968 Guinness Records in United States.

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