Residents look on trying to work out where the giant sink hole close to their homes had come from.

The Bolton News: Astley Bridge sink hole, 1964

This photo was taken in July 1964 after the large crater on spare land off Old Road at Astley Bridge suddenly appeared overnight.

There were fears that youngsters might fall into the hole as the waste ground was a popular playground.

If you were a youngster at the time, do you remember it?