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

Western Australian mining lease

M 77/1000 · Koolyanobbing Iron

M 77/1000 is a Western Australian mining lease held by YILGARN IRON PTY LTD (Yilgarn Iron Investments group). Granted 3 June 2003, expires 5 June 2045. 961 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: 11 May 2000
Granted: 3 June 2003
Expires: 5 June 2045
Area: 960.60 hectares (9.6 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: 32 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 334 ha
Yilgarn Operations - Windarling Range W1 Deposit Deepening Approved (Ministerial Statement), MS 627; overlaps 21 ha
Fire Management Strategies - track upgrading and chaining Not assessed; overlaps 961 ha
WAMEX data: 600 open-file drill holes, 43 exploration reports on this ground
Location: -30.01065, 119.2832 (centre)

Open on the map All mining leases

Mining proposals and mine closure plans

Date	Registration	Title	Status	Document (GeoDocs)
14 November 2024	Mining Proposal	Deception Mine Extension Mining Proposal	Approved	MP_127727.pdf
10 July 2024	Mine Closure Plan	MINE CLOSURE PLAN - YILGARN OPERATIONS (Koolyanobbing Iron Project) - J00559	Approved	MCP_118307.pdf
24 January 2023	Mining Proposal	Mining Proposal for Small Mining Operations - Windarling W10 mine void expansion	Approved	MP_115294.pdf
22 December 2021	Mining Proposal	Deception Mine Extension Mining Proposal - Revision 4	Approved	MP_99142.pdf
29 November 2021	Mining Proposal	Windarling W3/5 West Additional Backfilling - Mining Proposal for Small Operations - Revision 1	Approved	MP_99801.pdf
15 July 2021	Mine Closure Plan	YILGARN OPERATIONS - MINE CLOSURE PLAN - Revision 3 - Koolyanobbing Group - 2021	Approved	MCP_77710.pdf
24 December 2020	Mining Proposal With Mine Closure Plan	Yilgarn Operations Deception Mine Extension Mining Proposal & Mine Closure Plan	Approved	MP_87239.pdf
6 October 2016	Mining Proposal	Cliffs (2016) Windarling Range W10 Deposit Mining Proposal	Approved	mp_59254.pdf
16 July 2015	Mining Proposal	Windarling Operations W2 DepositWater Storage Dam M77/1000 - Amendment to Mining Proposal Reg ID 32732 (Rev 1)	Approved	mp_55596.pdf
29 July 2014	Mining Proposal	Windarling Range Dewatering Discharge to W2 Mine Pit	Approved	mp_47463.pdf
14 March 2014	Mining Proposal	Windarling Range W4 Land Use Rezoning	Approved	mp_45962.pdf
14 November 2013	Mining Proposal	Windarling Range W4 Deposit Infrastructure Changes - Addendum to Notice of Intent 4450 M77/999-I, M77/1000-I, M77/1039-I	Approved	mp_43209.pdf
31 October 2013	Mining Proposal	Windarling Range W3/5 Deposit Mine Pit Backfilling	Approved	mp_43563.pdf
2 April 2013	Mining Proposal	Yilgarn Operations - Windarling Range W1 Deposit Deepening Mining Proposal, Tenements M77/1000-I and M77/1001-I	Approved	mp_37432.zip
31 October 2012	Mining Proposal	Yilgarn Operations - Revised Windarling Range Topsoil, Subsoil and Vegetation Stockpiling Areas: Mining Act 1978 Mining Proposal Addendum To Notice of Intent 4450 Tenements M77/999, M77/1001 and M77/1039 31 August 2012	Approved	mp_35568.pdf

17 earlier registrations are in MINEDEX.

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