Data as at 18 October 2026 · from Western Australian Government registers and open data

Western Australian mining lease

M 77/997 · Koolyanobbing Iron

M 77/997 is a Western Australian mining lease held by YILGARN IRON PTY LTD (Yilgarn Iron Investments group). Granted 3 June 2003, expires 5 June 2045. 822 ha in the Yilgarn Mineral Field. Commodities: Iron. Part of the Koolyanobbing Iron project (operating).

Type: Mining lease
Status: Granted
Holder: YILGARN IRON PTY LTD
Parent group: Yilgarn Iron Investments (a subsidiary)
MINEDEX project: Koolyanobbing Iron J00559 · Operating
Owners: Yilgarn Iron Investments Pty Ltd 100%; Yilgarn Iron Pty Ltd; Deterra Royalties Limited
Lodged: 12 May 2000
Granted: 3 June 2003
Expires: 5 June 2045
Area: 821.70 hectares (8.2 km²)
Mineral field: Yilgarn Mineral Field
Commodities: Iron
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: YILGARN OPERATIONS (Koolyanobbing Iron Project): approved 10 July 2024, MINE CLOSURE PLAN - YILGARN OPERATIONS (Koolyanobbing Iron Project) - J00559
YILGARN OPERATIONS - Koolyanobbing Group: approved 15 July 2021, YILGARN OPERATIONS - MINE CLOSURE PLAN - Revision 3 - Koolyanobbing Group - 2021
Environmental registrations: 8 mining proposal and closure plan registrations (MINEDEX)
EPA Ministerial Statements: MS 1054, MS 907, MS 843, MS 802, MS 627
EPA referred proposals: Yilgarn Operations – Windarling Range, Mt Jackson Range And Deception Deposit Approved (Ministerial Statement), MS 982; overlaps 52 ha
Marda Gold Project Not assessed; overlaps 586 ha
Fire Management Strategies - track upgrading and chaining Not assessed; overlaps 822 ha
WAMEX data: 99 open-file drill holes, 66 exploration reports on this ground
Location: -30.26275, 119.23475 (centre)

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Mining proposals and mine closure plans

Date	Registration	Title	Status	Document (GeoDocs)
10 July 2024	Mine Closure Plan	MINE CLOSURE PLAN - YILGARN OPERATIONS (Koolyanobbing Iron Project) - J00559	Approved	MCP_118307.pdf
15 July 2021	Mine Closure Plan	YILGARN OPERATIONS - MINE CLOSURE PLAN - Revision 3 - Koolyanobbing Group - 2021	Approved	MCP_77710.pdf
31 January 2014	Mining Proposal	Mt Jackson J1 Pit Dewatering Discharge to J2 Pit	Approved	mp_45398.pdf
1 April 2011	Mining Proposal	MT JACKSON J2 PIT DEEPENING TO 409m AHD MINING PROPOSAL: ADDENDUM TO NOTICE OF INTENT 4450	Approved	mp_29782.pdf
26 June 2009	Mining Proposal	Mt Jackson Turkeys Nest Dam Letter of Intent - Addendum to Notice of Intent 4450 - M77/997	Approved	mp_21687.pdf
15 December 2003	Mining Proposal	KOOLYANOBBING / NORTHERN EXPANSION PROJECT	Approved	mp_4450.pdf
5 November 2003	Mining Proposal	KOOLYANOBBING / TRANSPORT CORRIDOR EXPANSION PROJECT	Approved	mp_4409.pdf
16 July 2003	Mining Proposal	KOOLYANOBBING NORTHERN TENEMENT EXPANSION:GDAA : TRANS CORRI	Approved	mp_17701.pdf

Registrations from MINEDEX (DMPE); the documents are the operators' own, linked on GeoDocs and not copied.