Overview
| Status | Closing / Closed |
| Mine Type | Open Pit |
| Commodities |
|
| Mining Method |
|
| Mine Life | 2019 |
Gunnedah open cut mines are Sunnyside, Rocglen, Werris Creek and Tarrawonga.
Production ended in June 2019. We have commenced a rehabilitation programme for the mine, which is likely to take roughly 18 months to complete.
Rocglen rehabilitation is progressing well, with major earth moving activities at Rocglen scheduled to be finalised in Rocglen in H1 FY22. |
Source:
p. 10
Whitehaven currently owns all freehold land within ML 1620/1662 as well as the surrounding properties identified as “Glenroc”, “Costa Vale”, “Yarrawonga”, “Yarrari”, “Belah”, “Brentry”, “Stratford” and that part of the “Roseberry” property contained within the bounds of Rocglen.
Summary:
Mineralization involves three separate coal seams, being the Upper Glenroc, Lower Glenroc and Belmont seams.
Summary:
Production has now ceased for the RCM, with no coal production in the next reporting period. Any vegetation clearing activities in mining areas over the next reporting period will be conducted in accordance with the approved MOP and associated Management Plans.
Summary:
No processing residues or tailings will be produced during the Closure MOP term.
Reject material from the Whitehaven CHPP will be returned via truck to nearby Whitehaven pits including Rocglen for disposal. All reject material will be co-disposed in the pit void with waste rock material.
Production:
Production ended in June 2019. Company have commenced a rehabilitation programme for the mine, which is likely to take roughly 18 months to complete.
| Commodity | Units | 2019 | 2018 | 2017 | 2016 | 2015 |
|
Coal (thermal)
|
t
| ......  | 856,818 | 983,054 | 314,383 | 936,457 |
All production numbers are expressed as clean coal.
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Operational Metrics:
| Metrics | 2019 | 2018 | 2017 | 2016 | 2015 |
|
Waste
| 2,373,500 bcm | 4,580,100 bcm | 5,773,704 bcm | 1,974,300 t | 5,080,179 t |
|
Coal tonnes mined
| 470,119 t of ROM coal | 1,062,674 t of ROM coal | 1,497,119 t of ROM coal | 467,518 t of ROM coal | 1,260,349 t of ROM coal |
Reserves at August 31, 2020:
| Category | OreType | Tonnage | Commodity |
|
Indicated
|
In-Situ (OP)
|
6 Mt
|
Coal (thermal)
|
|
Indicated
|
In-Situ (UG)
|
3 Mt
|
Coal (thermal)
|
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