Data as at 2 October 2026 · from Queensland Government mining tenure registers
Tenure holder
Grotjahn, Jack Arno
Grotjahn, Jack Arno holds 1 current Queensland mining tenure (1 mining claim) covering 18 hectares.
1tenures
18hectares
0environmental authorities
Tenures
| Tenure | Holder | Status | Expires | Commodities | Hectares |
|---|---|---|---|---|---|
| MC 300578 The Cake Slide | Grotjahn, Jack Arno | Granted | 31 July 2036 | Opal | 18 |