Coordinate GPS medie per codice postale hp4: 51.774, -0.57

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lista delle città :
>> Dagnall HP4, Hertfordshire, England, coordinate GPS: 51.7677,-0.5689
>> Northchurch HP4, Hertfordshire, England, coordinate GPS: 51.7711,-0.5852
>> Little Gaddesden HP4, Hertfordshire, England, coordinate GPS: 51.8101,-0.5619
>> Potten End HP4, Hertfordshire, England, coordinate GPS: 51.7677,-0.5689
>> Berkhamsted HP4, Hertfordshire, England, coordinate GPS: 51.7604,-0.5653
>> Ringshall HP4, Hertfordshire, England, coordinate GPS: 51.7677,-0.5689