Nord Gold's reserves and annual production estimates may be an order of magnitude larger than Tyhee's, but Nord Gold's borrowing costs of 6.375% on 5-year money may give a rough idea of what Tyhee would need to pay to get a mine financed.

My apologies for the the poor formatting of the excerpts below.

Old School

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Nord Gold N.V. ("Nordgold" or the "Company", LSE: NORD), an international gold producer with nine operating mines in Russia, Kazakhstan, Burkina Faso and Guinea, today announces that it has raised US$500 million in the international capital markets in a debut 5 year Eurobond issue. The US$500,000,000 6.375% Guaranteed Notes due 2018 (the "Notes") were issued on May 7, 2013. http://www.investegate.co.uk/article.aspx?id=201305080700122053E

[By way of background, Reuters notes the following.]

Nord Gold is a medium-sized gold producer with mining operations inRussia, Guinea, Burkina Faso and Kazakhstan. The company was spun-off from OAO Severstal (BB/Stable) in 2012.

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At 1 January 2013, the company had control of 12.6moz of gold reserves with an average mine life of approximately 18 years based on output of 717koz of gold in 2012. This places Nord Gold as a small-to medium sized mining company in global terms. The quality of ore reserves at Nord Gold's deposits at an average gold grade of 1.1g/t according to the latest available JORC report, is close to the upper end of international peers, which average 0.8g/t -1.2g/t.... http://www.reuters.com/article/2013/05/08/fitch-assigns-nord-gold-nvs-2018-notes-b-idUSFit65708420130508