I recently came across this article entitled "VMS Deposits of the World", which I wanted to share, as PRB has a couple of very interesting VMS properties at MacFaulds. They get little attention, and IMO are not valued at all in the current share price. From the article:

VMS deposits are particularly prevalent in Canada. Out of the approximately 800 known VMS deposits in the world, there are close to 350 in Canada. Canadian VMS deposits account for 27 percent of the country’s copper production, 49 percent of its zinc, and 40 percent of its silver. Worldwide, VMS deposits account for much less copper production, at an estimated 6 percent. However, 22 percent of the world’s zinc, 9.7 percent of lead, 8.7 percent of silver, and 2.2 percent of gold are extracted from VMS deposits.

Example of a world class VMS deposit: Noranda

The Noranda District contains the most thoroughly studied and documented volcanogenic massive sulfide (VMS) deposits of any Archean volcanic complex. Over an 85-year period, 20 economic VMS deposits have been discovered by prospecting, geological, geophysical and lithogeochemcial techniques. The Noranda District is also host to 19 small, orogenic gold deposits. These deposits only account for a small amount of gold production. Noranda’s Horne VMS deposit is the top producer, with almost ten million ounces of gold production to date.

http://resourceinvestingnews.com/13219-vms-deposits-of-the-world.html

From PRB's web site (Victory Property):

The aerial extent of Probe's land position in the Victory Belt is comparable to that of established VMS camps, most notably the Noranda area of Quebec, which contains numerous deposits and base metal occurrences.

To demonstrate the size of the Victory belt with respect to the Noranda Camp, the two areas are shown to scale in the diagram below. This figure shows the interpreted geology of the Victory project with known conductors at the same scale as the Noranda Camp. Note the similarity in distribution and stratigraphic control of conductors as well as the possible vertical "stacking".

http://www.probemines.com/s/McFauld.asp?ReportID=405297&_Type=McFaulds-Lake&_Title=Victory

Tamarack

Tamarack also hosts potential VMS deposits.

http://www.probemines.com/s/McFauld.asp?ReportID=405233&_Type=McFaulds-Lake&_Title=Tamarack

Lots of unrealized value with this company. Lots.