Here is a video of a wood stack in northern Finland (the home country of Fiskars). The poster's comment states that he has not measured the stack but he is guessing it is about 500 meters long. He also got another stack elsewhere. Somewhat poor quality video but nevertheless impressive.
The video has been in Youtube for couple of years, so I hope it has not been posted before:
The video has been in Youtube for couple of years, so I hope it has not been posted before: