Appleton Fault on LAB's groundFrom the Exploit's website, this claim map shows the Appleton Fault as it crosses LAB's ground. You have to zoom in pretty large, but you see that most of LAB's ground is to the west of the fault, with only a sliver on the east side. Big Vein is located just to the west of the fault.
https://exploitsdiscovery.com/area-play/
This actually bodes well for NFG as well, since LAB's Big Vein may prove that gold occurs on both sides of the fault.