Some reference maps for those who want to look at the areas being talked about.

Langmuir North Drilling Map:

http://www.inspirationmining.com//files/107.pdf

Also are the claim maps if you interested in looking at the claim 1313131 that Nickel77 refers to. Add the fact that adjoining ISM claim 1313130 (on the east side of 1313131) has substantial VTEM anomalies (shown as N4) and drilling as well.

http://www.inspirationmining.com//files/24.pdf

VTEM Targets at Langmuir North

http://www.inspirationmining.com//files/72.pdf

For visual references so you can get your bearings, it looks like the old settling ponds lie northerly in ISM claim 1213414 and the drilling seems to run below this down to

I found it easiest to pop between these two maps once they are upan area close tot eh "cave in" showing blue water and "waste dump" at the bottom left corner. This drilling map showing the boundary to the west and south.

Drilling: http://www.inspirationmining.com//files/107.pdf

Claims: http://www.inspirationmining.com//files/24.pdf