This morning we received a long awaited update from Bitterroot Resources (TSX-V:BTT, OTC:BITTF) on drilling at the LM Project in Michigan's Upper Peninsula. While we didn't receive a stunning high-grade copper/nickel massive sulphide headline intersection, BTT did intersect semi-massive and massive sulphide mineralization in holes LM21-13 and LM21-14. Hole 14 in particular intersected 1.07 meters grading 4.09% nickel, .78% copper, and .19 grams/tonne gold and PGMs. The other 7 holes drilled in this current phase of drilling either exited the intrusion above the elevation of the sulphide mineralization or missed the intrusion entirely.

The following map helps to illustrate why BTT has honed in on the southeast quadrant at LM, this area appears to host the keel of the steeply plunging LM intrusion where there is significant potential for a pool of massive sulphides to be discovered:

Holes 21-07, 21-13, and 21-14 have all intersected semi-massive or massive sulphides in the southeast quadrant at LM. On March 30th, 2021 BTT announced hole 21-07 which intersected 3.5 meters grading 1.67% nickel, .90% copper, and .36 grams/tonne gold & PGMs. This intersection included a notable .08 meter massive sulphide 'rip-up clast' that graded a breathtaking 7.13% nickel, 7.91% copper, and .63 grams/tonne gold & PGMs.

Hole 21-14 intersected massive & semi-massive sulphides at an elevation roughly 35 meters above, and roughly 30 meters directly to the south of hole 21-07. In addition, hole 21-13 intersected semi-massive and disseminated sulphides over 3.07 meters at an average grade of .52% nickel, .40% copper, and .15 grams/tonne gold & PGMs - hole 21-13 intersected the mineralized zone at an elevation roughly 20 meters above, and 35 meters to the southeast of hole 21-07.

It's not a stretch to posit that these three areas of high-grade copper/nickel sulphide mineralization are connected. Hole 21-21 (the 10th hole of this phase of drilling) is targeting mineralization in the southeast quadrant, which appears to host the keel of the steeply plunging LM intrusion. BTT plans to drill an eleventh hole prior to October 31st, after which, drilling will pause for hunting season.

The massive and semi-massive sulphides intersected in holes 7, 13, and 14 came from a source below, a feeder system. The questions now become "how is this feeder shaped? Where is it exactly? And how large is the mineralized zone?"

Like most junior mining investors, I hate the terms 'technical success' OR 'geological hole'. However, in reality these types of holes are an important part of the exploration process, especially when hunting for the types of massive-sulphide pools that Bitterroot is exploring for.

When this phase of drilling began, evidence pointed to sulphide content and grades increasing to the south. Additional evidence garnered from nine additional drill holes increasingly points to the southeast quadrant of the LM intrusion.

Hole 21-08 exited above the mineralized elevation and hole 21-09 was lost in a fault, so the southeast corner is not closed off or adequately tested. Holes 21-21 and 21-22 will more thoroughly test the southeast quadrant, and should tell us a lot more about the shape and size of the sulphide mineralization at LM. 

Disclosure: Author owns Bitterroot Resources shares at the time of publishing and may choose to buy or sell at any time without notice. Author has been compensated for marketing services by Bitterroot Resources Ltd. 

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