About Osisko Development


1858 to 1872

Cariboo Gold Rush

  • Placer gold discovered on Williams Creek (140 oz in 10 hours of hand sluicing) leading to the Cariboo Gold Rush
  • 1860: Town of Barkerville established, largest city North of San Francisco in western North America
  • 1866: Colony of British Columbia formed to assert British Sovereignty over the previously Hudson’s Bay Company administered unorganized territory
  • Province of British Columbia officially joins the Dominion of Canada in 1871 to avoid annexation by US

1872 to 1895

Alluvial Dominated Gold Production

  • Use of more efficient water systems to access and process alluvial gold deposits

1895 to 1920

Hydraulic Mining

  • Large swaths of major stream valleys in the Cariboo were completely overturned by hydraulic mining

1920 to 1987

Underground and Small Open Pit Lode Deposits Mined

  • Cariboo Gold Quartz Mining Company opens mine of Cow Mountain (1932)
  • JP Morgan (Newmont Mining) builds Aurum Mine on Island Mountain (1933)
  • Mosquito Creek Mines builds mine at Mosquito Creek (1983)

1999 to 2015

Barkerville Gold Mines (under Previous Operator)

  • Land consolidation of > 100 mineral rights
  • Open pit resource statements 2012 to 2014, suspension of trading on TSX
  • Open pit mine at Bonanza Ledge 2014
  • Major Shareholder takes over company invites Osisko to Co-Invest


Initial Equity Investment by Osisko Gold Royalties into Barkerville Gold Mines

  • Detailed technical and corporate due diligence completed
  • Recommendations provided to unlock geological controls of the project


Revised Geologic Model Unlocks Value

  • Osisko Gold Royalties replaces management of Barkerville Gold Mines
  • Mapping and sampling in old underground mines along with 60,000 m of drilling defines controls on mineralization. Drilling success increases from 20% to 90%
  • 110 geochemical targets identified along trend demonstrating upside potential


Massive Drill out of Old Mines Area and Underground Mining Permit for Bonanza Ledge

  • Barkerville completes 160,000 m of drilling on Cow, Island, Valley and Mosquito Creek deposits
  • Bonanza Ledge mining permit amended to mine remaining ore from underground
  • QR Mill upgraded


43-101 Compliant Resource Estimate and Mining at Bonanza Ledge

  • Barkerville publishes a 3.7 Moz underground resource for Cariboo project
  • Mined 150,000 tonnes from Bonanza Ledge producing 23,000 ounces of gold


Updated Resource Estimate, PEA and 100% Acquisition by Osisko Gold Royalties

  • Barkerville publishes robust PEA and updated resource estimate of 4.3 Moz
  • Discovery of new 36 km parallel trend for a total 83 km of mineralized strike
  • Osisko Gold Royalties purchases the remaining 68% of BGM not already owned


Osisko Gold Royalties Announces Spin-Out of Mining Assets and Creation of a Premier North American Gold Development Company

  • The Cariboo Gold project becomes the flagship asset of the newly created Osisko Development Corp.


11 + 2 =

Stock Information






1100, av des Canadiens-de-Montreal
Suite 300, P.O. Box 211
Montreal, QC H3B 2S2

Tel: 1.514.940.0685
Int: 1.888.974.1412
Fax: 1.514.940.0687

BGM - Community Relations Office

4270 Sanders Ave., P.O. Box 250
Wells, BC V0K 2R0

Tel: 1.778.414.8493