MCF Mining Approvals IndexData as at 18 October 2026 · from Western Australian Government registers and open data
Western Australian mining lease
M 31/30 · Porphyry - Northern Operations
M 31/30 is a Western Australian mining lease held by NORTHERN STAR (CAROSUE DAM) PTY LTD (Northern Star Resources group). Granted 6 October 1986, expires 7 October 2028. 436 ha in the North Coolgardie Mineral Field. Commodities: Gold, Silver. Part of the Porphyry - Northern Operations project (operating).
- Type
- Mining lease
- Status
- Granted
- Parent group
- Northern Star Resources (matched by name)
- MINEDEX project
- Porphyry - Northern Operations J00094 · OperatingOwners: Northern Star Resources Ltd 100%; Saracen Mineral Holdings Ltd; Northern Star (Carosue Dam) Pty Ltd
- Lodged
- 29 March 1986
- Granted
- 6 October 1986
- Expires
- 7 October 2028
- Area
- 435.50 hectares (4.4 km²)
- Mineral field
- North Coolgardie Mineral Field
- Commodities
- Gold, Silver
- Rehabilitation liability
- Its rehabilitation liability is in the MCF Mining Index (subscribers): the Mining Rehabilitation Fund estimate, its trend since 2014, company provisions and closure-plan costs
- Mine closure plan
- Enterprise Stage 2 Project: approved 1 December 2017, Enterprise Stage 2 Project
- Environmental registrations
- 9 mining proposal and closure plan registrations (MINEDEX)
- WAMEX data
- 1,708 open-file drill holes, 65 exploration reports on this ground
- Location
- -29.79235, 122.31155 (centre)
Mining proposals and mine closure plans
| Date | Registration | Title | Status | Document (GeoDocs) |
|---|---|---|---|---|
| 21 November 2024 | Mining Proposal | Porphyry - Northern Operations Mining Proposal Revision 5 Version 0 | Approved | MP_129177.pdf |
| 8 September 2023 | Mining Proposal | Porphyry EGS Mining Proposal Rev 4.0 Ver 0 | Approved | MP_119816.pdf |
| 6 May 2022 | Mining Proposal | Porphyry - Northern Operations - Mining Proposal - Revision 3, Version 1 | Approved | MP_102215.pdf |
| 11 May 2021 | Mining Proposal | Porphyry - Northern Operations Environmental Group Site - Mining Proposal - Revision 2 | Approved | MP_96583.pdf |
| 11 March 2021 | Mining Proposal | Porphyry - Northern Operations EGS S0001992 - Mining Proposal Version 1.2 - March 2021 - Final | Approved | MP_92519.pdf |
| 1 December 2017 | Mining Proposal With Mine Closure Plan | Enterprise Stage 2 Project | Approved | mp_70115.pdf |
| 28 February 2012 | Mining Proposal | Margaret's Stage 2 Mining Proposal M31/30 | Approved | mp_33085.zip |
| 5 April 2011 | Mining Proposal | MP - Saracen - Margerts open pit part 1 | Approved | mp_29421.pdf |
| 9 March 2011 | Mining Proposal | MP - Saracen - Enterprise Haul Road | Approved | no public document |
Registrations from MINEDEX (DMPE); the documents are the operators' own, linked on GeoDocs and not copied.