Computers again!

I'm really not paranoid about computers, they genuinely hate me. We had an e-mapping session using the DofE website software, in theory brilliant you just click points on your route and it calculates distance, time, height climbed and almost anything you ask, just one problem (of course): a neat rectangular 30,000m deep pit in a random corner of Snowdonia. Given that Everest is only 8,848m I'm surprised it has not come to anyone's attention!