As Arte Johnson would say ... very interestink!! ... ok I'm dating myself. But I was young when Laugh-in was on the air

From a quick superficial look, it appears they've stripped between 750 and 850 metres ... and also I don't think the "border" vein is included in this map. It's also very interestink how the veins go in multiple directions quite unlike KXL as has been said.

ok now for a more recent quote "Whoop Dee Doo Basil, what's it all mean??"