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

Western Australian mining lease

M 20/99 · Cue Gold - Central Murchison

M 20/99 is a Western Australian mining lease held by BIG BELL GOLD OPERATIONS PTY LTD (Westgold Resources group). Granted 11 February 1988, expires 18 February 2030. 245 ha in the Murchison Mineral Field. Commodities: Gold, Silver. Part of the Cue Gold - Central Murchison project (operating).

Type: Mining lease
Status: Granted
Holder: BIG BELL GOLD OPERATIONS PTY LTD
Parent group: Westgold Resources (a subsidiary)
MINEDEX project: Cue Gold - Central Murchison J00017 · Operating
Owners: Westgold Resources Limited 100%; Big Bell Gold Operations Pty Ltd
Lodged: 9 September 1987
Granted: 11 February 1988
Expires: 18 February 2030
Area: 245.20 hectares (2.5 km²)
Mineral field: Murchison 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: Big Bell - Westgold Resources Limited: approved 1 May 2020, Big Bell Mining Proposal - Westgold Resources Limited - April 2020 - Version 1.1
Central Murchison Gold Project (Yaloginda, Paddy's Flat, Reedy, Day Dawn, Big Bell, Cuddingwarra: approved 11 August 2015, Central Murchison Gold Project (Yaloginda, Paddy's Flat, Reedy, Day Dawn, Big Bell, Cuddin
Environmental registrations: 14 mining proposal and closure plan registrations (MINEDEX)
WAMEX data: 92 open-file drill holes, 45 exploration reports on this ground
Location: -27.35885, 117.6263 (centre)

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Mining proposals and mine closure plans

Date	Registration	Title	Status	Document (GeoDocs)
28 February 2024	Mining Proposal	Mining Proposal: Big Bell Project, Rev 5.2	Approved	MP_119434.pdf
20 October 2022	Mining Proposal	Big Bell Mining Proposal Version 4, Revision 3	Approved	MP_102902.pdf
12 January 2022	Mining Proposal	Big Bell Project, Mining Proposal, Revision 3 Version 2	Approved	MP_99691.pdf
24 August 2021	Mining Proposal	Big Bell Mining Proposal Revision 2	Approved	MP_96510.pdf
1 May 2020	Mining Proposal With Mine Closure Plan	Big Bell Mining Proposal - Westgold Resources Limited - April 2020 - Version 1.1	Approved	MP_86258.pdf
4 March 2020	Mine Closure Plan	Central Murchison Gold Project - Big Bell Operations Mine Closure Plan - S0231643	Approved	MCP_72321.pdf
11 August 2015	Mining Proposal With Mine Closure Plan	Central Murchison Gold Project (Yaloginda, Paddy's Flat, Reedy, Day Dawn, Big Bell, Cuddingwarra	Approved	mp_54830.pdf
17 May 2013	Mining Proposal	Part 1 Central Murchison Gold Project Dewatering Mining Proposal	Approved	mp_37098.pdf
23 March 2006	Mining Proposal	BIG BELL AMENDMENT TO NOI FOR TRY AGAIN PIT M21-44	Approved	no public document
5 May 2003	Mining Proposal	BIG BELL : CUDDINGWARRA : CITY OF CHESTER PIT	Approved	mp_4019.pdf
10 October 2001	Mining Proposal	BIG BELL GOLD : 1600 NORTH PIT CUTBACK	Approved	mp_3786.pdf
16 August 1995	Mining Proposal	BIG BELL : FENDER PIT	Approved	mp_1935.pdf
1 January 1990	Mining Proposal	BIG BELL 1600N	Approved	mp_106.pdf
1 December 1987	Mining Proposal	BIG BELL	Approved	mp_105.pdf

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