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Porcupine Operation
(
Borden Mine
,
Hollinger Mine
,
Hoyle Pond Mine
)
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devices with screen width under 750 px.
Location:
6 km E from Timmins, Ontario, Canada
Address:
4315 Gold Mine Road
South Porcupine
Ontario, Canada
P0N 1H0
...
+1-705-235-6551
Email
Web
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Overview
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Overview
Stage
Production
Mine Type
Open Pit & Underground
Commodities
Gold
Mining Method
Truck & Shovel / Loader
Mechanized Cut & Fill
Longhole stoping
Shrinkage stoping
Sub-level Retreat
Cemented backfill
Paste backfill
Porcupine consists of the Hollinger open pit and Hoyle Pond underground operations, located in the city of Timmins, Ontario, as well as the Borden underground operation, located near the town of Chapleau, Ontario.
Owners
Source:
p. 40
Company
Interest
Ownership
Newmont Corp.
100 %
Indirect
Contractors
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Deposit Type
Breccia pipe / Stockwork
Vein / narrow vein
Summary:
The Porcupine mines are situated in the Porcupine Camp in Archean rocks of the western Abitibi Greenstone belt in the Canadian Shield. These consist of ultramafic and mafic volcanic rocks of the Keewatin subgroup overlain by sedimentary rocks of the Timiskaming group. The lands lie adjacent and to the north of the regionally significant Porcupine Destor Fault. Gold mineralization is found in a number of different structural settings and consists of continuous quartz carbonate veins, quartz tourmaline veins, quartz stockworks and gold associated with disseminated sulphides.
Mineralization at Hollinger and Hoyle, in Timmins, comprises multiple generations of quartzcarbonate-tourmaline albite veins, associated pyrite alteration envelopes, and disseminated pyrite mineralization. Mineralization at Borden consists of a shear zone containing quartz-vein hosted sulfides within a high-grade metamorphic greenstone package.
The Hoyle Pond.
The Hoyle Pond Main Zone and 1060 Zone deposits occur on opposite limbs of an open, northeast-plunging antiformal structure, hosted within carbonatized north-dipping tholeiitic basalts. The 7 Vein System occurs as a series of stacked, flat to gently northeast-dipping veins in the nose of the antiformal structure.
The Hoyle Pond Main Zone includes a series of generally northeast-striking, linked, quartz vein zones folded on a small scale with moderate west- and northeast-plunging axes.
The 1060 Zone cons ........
Mining Methods
Truck & Shovel / Loader
Mechanized Cut & Fill
Longhole stoping
Shrinkage stoping
Sub-level Retreat
Cemented backfill
Paste backfill
Summary:
Porcupine, consists of the Hollinger open pit and Hoyle pond underground operations, located in the city of Timmins, Ontario, as well as the Borden underground operation, located near the town of Chapleau, Ontario. Borden mine is the world’s first all-electric underground mine. Approximately 60% of the gold comes from the Hoyle Pond underground mine, where mechanized cut and fill and longhole mining methods are used to extract the ore, and the remaining ore comes from the Hollinger Open Pit mine. The Dome Underground mine ceased operations in 2017. Hollinger Open Pit mine There is sufficient grade at specific gold price-points to mine a 150m deep pit, with the rock being processed at the nearby Dome Mine mill. The voids (sub-vertical stopes, shafts, and connecting drifts/drives) are sometimes spaced nearly 20-50m apart extending several hundred metres deep in a 2km square area beneath the City. The pit design was constrained by a regional highway (and the City’s water tower) along the northern wall, with homes and businesses on all other sides of the Property. The Hollinger is being mined using three 6m and two 9m cuts making up 18m high benches in mostly FAIR to GOOD ground. All blasting is done with blast-mats to reduce fly-rock and noise. Because the mine is in-town, damage needs to be minimised. Earlier, blast trials were conducted to determine the depth of blast-damage induced by varying sizes of confined blasts. These trials indicated that a three-row trim shot onto ........
Crushing and Grinding
Source:
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Processing
Flow Sheet:
Summary:
- subscription is required.
Production
:
Porcupine produced 223,000 ounces of gold in 2019 since the completion of the acquisition of the mine site as part of the Newmont Goldcorp transaction on April 18, 2019.
Commodity
Units
2023
2022
2021
2020
2019
2018
2017
Gold
koz
......
^
......
......
......
......
259
272
All production numbers are expressed as metal in doré.
^ Guidance / Forecast.
- Subscription is required.
Operational Metrics:
Metrics
2022
2021
2020
2019
2018
2017
Total tonnes mined
......
......
......
7,827 k tons
Ore tonnes mined
......
......
......
2,807 k tons
Waste
......
......
......
5,020 k tons
Tonnes milled
......
......
......
3,008 k tons
3,672 kt
3,289 kt
Daily milling capacity
......
......
......
12,000 t
12,000 t
Daily milling rate
......
......
......
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Reserves at December 31, 2022:
Cut-off grade utilized in 2022 reserves not less than 5.00 grams per tonne for Underground and 0.51 grams per tonne for open pit.
Category
OreType
Tonnage
Commodity
Grade
Contained Metal
Proven
In-Situ (OP)
2,600 kt
Gold
1.6 g/t
130 koz
Proven
In-Situ (UG)
1,800 kt
Gold
8.5 g/t
500 koz
Proven
Total
4,400 kt
Gold
4.44 g/t
630 koz
Probable
In-Situ (OP)
31,900 kt
Gold
1.44 g/t
1,480 koz
Probable
In-Situ (UG)
700 kt
Gold
8.47 g/t
190 koz
Probable
Total
32,600 kt
Gold
1.59 g/t
1,670 koz
Proven & Probable
In-Situ (OP)
34,500 kt
Gold
1.46 g/t
1,610 koz
Proven & Probable
In-Situ (UG)
2,500 kt
Gold
8.49 g/t
690 koz
Proven & Probable
Total
37,000 kt
Gold
1.93 g/t
2,300 koz
Measured
In-Situ (OP)
200 kt
Gold
0.51 g/t
Measured
In-Situ (UG)
300 kt
Gold
6.69 g/t
70 koz
Measured
Total
500 kt
Gold
4.36 g/t
70 koz
Indicated
In-Situ (OP)
73,000 kt
Gold
1.53 g/t
3,600 koz
Indicated
In-Situ (UG)
1000 kt
Gold
8.64 g/t
270 koz
Indicated
Total
73,900 kt
Gold
1.63 g/t
3,860 koz
Measured & Indicated
In-Situ (OP)
73,200 kt
Gold
1.53 g/t
3,600 koz
Measured & Indicated
In-Situ (UG)
1,300 kt
Gold
8.15 g/t
340 koz
Measured & Indicated
Total
74,500 kt
Gold
1.64 g/t
3,940 koz
Inferred
In-Situ (OP)
66,000 kt
Gold
1.36 g/t
2,890 koz
Inferred
In-Situ (UG)
1,800 kt
Gold
8.08 g/t
480 koz
Inferred
Total
67,900 kt
Gold
1.54 g/t
3,370 koz
Commodity Production Costs:
Commodity
Units
2023
2022
2021
2020
2019
2018
2017
Credits (by-product)
Gold
USD
......
......
Total cash costs (sold)
Gold
USD
......
^
†
......
†
......
†
......
†
......
†
Total cash costs
Gold
USD
747 / oz
†
754 / oz
†
All-in sustaining costs (sold)
Gold
USD
......
^
†
......
†
......
†
......
†
......
†
All-in sustaining costs (AISC)
Gold
USD
953 / oz
†
979 / oz
†
^ Guidance / Forecast.
†
Net of By-Product.
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Operating Costs:
Units
2016
2015
OP mining costs ($/t mined)
USD
4.94
5.56
UG mining costs ($/t mined)
USD
......
......
Combined mining costs ($/t milled)
USD
Processing costs ($/t milled)
USD
......
......
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Financials:
Units
2023
2022
2021
2020
2019
2018
2017
Capital expenditures (planned)
M USD
......
Sustaining costs
M USD
......
......
......
41
47
Capital expenditures
M USD
......
......
......
......
139
109
Revenue
M USD
......
......
......
......
321
341
Operating Income
M USD
......
27
10
Pre-tax Income
M USD
......
......
......
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Pipelines and Water Supply
Source:
- subscription is required.
Heavy Mobile Equipment:
HME Type
Model
Quantity
Ref. Date
Grader
.......................
Apr 19, 2018
Jumbo
.......................
.......................
Jan 31, 2018
Jumbo
.......................
.......................
Dec 31, 2017
Loader
.......................
Dec 31, 2022
Load-Haul-Dump (LHD)
.......................
Dec 31, 2022
Scissor Lift
.......................
.......................
Dec 31, 2017
Shovel (hydraulic)
.......................
Dec 31, 2022
Truck (haul)
.......................
.......................
Dec 31, 2022
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Mine Management:
Job Title
Name
Profile
Ref. Date
.......................
.......................
May 8, 2023
.......................
.......................
May 8, 2023
.......................
.......................
May 8, 2023
.......................
.......................
May 8, 2023
.......................
.......................
May 8, 2023
.......................
.......................
May 4, 2023
.......................
.......................
May 8, 2023
.......................
.......................
May 8, 2023
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Staff:
Total Workforce
Year
2021
2018
2017
Corporate Filings & Presentations:
Document
Year
Corporate Presentation
2023
Form 10-K
2022
Other
2022
Press Release
2022
Sustainability Report
2022
Year-end Mineral Reserves
2022
...................................
2021
...................................
2021
...................................
2021
...................................
2019
...................................
2019
Management Discussion & Analysis
2018
Year-end Mineral Reserves
2018
Annual Information Form
2017
Annual Report
2017
Corporate Presentation
2017
Other
2017
Other
2017
Press Release
2017
Press Release
2017
Annual Report
2016
Form 40-F
2016
Annual Report
2015
Year-end Mineral Reserves
2015
Year-end Mineral Reserves
2014
Annual Report
2013
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