Golden Zone

About the Golden Zone Projects

The Golden Zone Project is 100%-owned by Contango Ore and comprised of a 2,960-acre Uplands Mining Lease with an expiry date of 2050, surrounded by 68 State of Alaska mining claims totaling 7,720 acres. The project contains a NI 43-101-compliant, open-pit-contained mineral resource estimate (MRE) with a total indicated resource of 4.2 Mt grading 1.99 g/t gold, 10.38 g/t silver at a 0.5 g/t gold cut-off (267,400 oz Au). Previously owned by Avidian Gold, historic drilling includes ~26,662m used to delineate the 2016 resource.

Reduces intrusion-related gold system in Valdez Creek mining district:

Land Tenure and Prospects

Over 25 named prospects within three NE–SW striking corridors:

Golden Zone Corridor (>19 km mineralized trend) with MRE
Long Creek Corridor (>3 km mineralized trend)
Silver Dikes Corridor

Geologic Summary

Hosted in the “Chulitna Block” at the northwestern end of the Wrangellia Terrane
Geology characterized by Paleozoic to Cretaceous metasediments and volcanic rocks intruded by Late Cretaceous to Early Tertiary stocks and dykes
Breccia Pipe Deposit is the anchor to additional peripheral mineralization and nearby discoveries

Key Mineralization

Breccia Pipe
NE plunging pipe-like body of monolithic crackle to jigsaw breccia
Hosted entirely within monzodiorite porphyry stock and healed by quartz and sulfides
- High-grade sulphide breccia at lower depth
- Low-grade siliceous breccia
BLT–Lindfors Shear Zone
NE striking, steeply dipping, altered-sheared listwanitic vein-dike complex

MRE and Future Potential

NI 43-101-compliant open-pit MRE (2016) carried out by A.C.A. Howe International Limited for the Breccia Pipe and BLT-Lindfors shear zone
Indicated Resource:
4.2 Mt grading 1.99 g/t Au and 10.38 g/t Ag
Inferred Resource:
1.35 Mt grading 0.83 g/t Au and 2.56 g/t Ag

Breccia Pipe
NE plunging pipe-like body of monolithic crackle to jigsaw breccia
Hosted entirely within monzodiorite porphyry stock and healed by quartz and sulfides
- High-grade sulphide breccia at lower depth
- Low-grade siliceous breccia
BLT–Lindfors Shear Zone
NE striking, steeply dipping, altered-sheared listwanitic vein-dike complex

Resource Expansion Potential

Mayflower Extension Zone (MEZ)
~600 m trend and open to NE
BLT Shear Zone
> 1.5 km of mineralization
Breccia Pipe Margins (below 150 m)
Monzodiorite hosting the Breccia Pipe Deposit

Drill-Ready Targets

Copper King
>2 km mineralized conglomerate porphyritic stockworks

Several breccia pipe intercepts are not included in the 2016 MRE and are targets for future exploration aimed at expanding the mineral resource.
Opportunities to drill step-outs at the BLT-Lindfors shear zone to expand the 2016 MRE.
Opportunities to drill the Mayflower prospect skarn and vein/fault mineralization to assess its potential to be incorporated into the resource.
Opportunities to drill the Copper King prospect replacement pyrrhotite-bornite-chalcopyrite mineralization hosted in hornfels and andesite east of a ~210 m wide quartz porphyry granite.
Compelling regional targets such as JJ and MJ that coincide with geophysical magnetic highs and grab samples with up to 5.17 g/t Au and 4.2 g/t Au with 2.77% Cu.