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

Western Australian mining lease

M 39/446 · Mt Zephyr Calcrete

M 39/446 is a Western Australian mining lease held by MURRIN MURRIN OPERATIONS PTY LTD (Glencore group). Granted 3 June 1997, expires 2 June 2039. 972 ha in the Mount Margaret Mineral Field. Commodities: Limestone. Part of the Mt Zephyr Calcrete project (operating).

Type: Mining lease
Status: Granted
Holder: MURRIN MURRIN OPERATIONS PTY LTD
Parent group: Glencore (a subsidiary)
MINEDEX project: Mt Zephyr Calcrete J02291 · Operating
Owners: Minara Resources Ltd 100%
Lodged: 30 July 1996
Granted: 3 June 1997
Expires: 2 June 2039
Area: 972.00 hectares (9.7 km²)
Mineral field: Mount Margaret Mineral Field
Commodities: Limestone
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
Environmental registrations: 34 mining proposal and closure plan registrations (MINEDEX)
WAMEX data: 2,714 open-file drill holes, 54 exploration reports on this ground
Location: -28.47945, 122.1655 (centre)

Open on the map All mining leases

Mining proposals and mine closure plans

Date	Registration	Title	Status	Document (GeoDocs)
23 September 2026	Mining Proposal	MMN Mining Proposal Amendment - Evaporation Pond 5	Approved	no public document
13 January 2015	Mining Proposal	2015 - 2017 Mine Development Mining Proposal	Approved	mp_53249.pdf
30 April 2014	Mining Proposal	Asbestos Pipeline Removal and Calcrete Quarry Extension	Approved	mp_46175.pdf
24 January 2013	Mining Proposal	Calcrete and Murrin Murrin East Grade Control Mining Proposal	Approved	mp_37764.pdf
16 March 2006	Mining Proposal	MURRIN MURRIN: ENVIRON MANAGEMENT PLAN (ALL TENEMENTS)	Approved	mp_5187_3EABEB4A1CE9738A2EB4ACA26E4BF43B.pdf
23 March 2005	Mining Proposal	MURRIN MURRIN / ANACONDA / HAUL RD B PITS T NESTS	Approved	mp_4540.pdf
23 April 2004	Mining Proposal	MURRIN MURRIN / ANACONDA / AIRPORT MODIFICATIONS	Approved	mp_4533.pdf
21 January 2004	Mining Proposal	MURRIN MURRIN - WINDARRA / CALCRETE QUARRY ON M39/446	Approved	mp_4488.pdf
30 July 2003	Mining Proposal	MURRIN MURRIN / WINDARRA / CALCRETE PIT VARIATION M39/446	Approved	mp_4336.pdf
7 January 2003	Mining Proposal	MURRIN MURRIN : MM4 STAGE 3 : H/ROAD; W/DUMP AND TS S/PILES	Approved	mp_4160.pdf
2 January 2003	Mining Proposal	MURRIN MURRIN : BACKFILLING PITS WITH WASTE GRADE MATERIAL	Approved	mp_4161.pdf
28 November 2002	Mining Proposal	MURRIN MURRIN:STG 6 AND WINDARRA CALCRETE NOI VAR : M39/446	Approved	mp_4132.pdf
13 December 2000	Mining Proposal	MURRIN MURRIN : INSTALLATION OF CATCH PIT	Approved	mp_16975.pdf
30 May 2000	Mining Proposal	MURRIN MURRIN WINDARRA CALCRETE WATER DISCHARGE	Approved	mp_16741.pdf
12 May 2000	Mining Proposal	MURRIN MURRIN : CHARLIE BOREFIELD	Approved	mp_3270.pdf

19 earlier registrations are in MINEDEX.

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