Big Hill Gold Property Queensland Australia
The Big Hill Gold Project (EPM 18255 & EPM 27507) covers a number of historic mines including of Big Hill, Queenslander, Monte Cristo and Sultan & Taylor of the Talgai Goldfields. This is one of eight historical Goldfields in the broader Warwick-Texas District active in the late 19th century, which include Canal Creek, Thanes Creek, Leyburn, Palgrave, Pikedale, Lucky Valley and MacDonald Goldfields.
These supported both alluvial and reef mining, with the Queenslander Mine distinguishing itself as the first lode gold mine in the state of Queensland with a total production of 4.1Koz of gold at an average grade of 50g/t with some early crushings reported up to 4000g/t.
The Big Hill project area is currently defined by:
- Shallow historic high grade mine and alluvial workings
- coincident surface geochemical anomalism and corresponding magnetic responses
- favorable geological domain and structural setting.
The exploration model for the Big Hill project is a high grade, shear hosted, orogenic gold system. This type of lode gold system is associated with continental margin accretionary orogens (oceanic-continental) typically occurring in terranes dominated by turbiditic (meta- sedimentary) rocks and are commonly associated with second- and third-order faults and shear zones resulting in moderately to steeply plunging, tabular to pipe-like orebodies.
Production records from historical mining activities show the vein system has the capacity to host significant high-grade mineralisation along with complex stranded structural architectures capable of creating large mineralised shoots. The vein systems remain open at depth below the historical workings as well as along strike and remain untested by drilling.
The historic mines of Big Hill and Queenslander are the primary focus of follow-up exploratory work based on their historic production history, favorable geological and structural settings and their location within the granted mining lease ML50287 which is part of EPM18255.
Historic Workings Reports
Discovered in 1863 and mined into the mid 1900’s the gold system on the Big Hill property was targeted in several locations with historical workings. The historic reports, although incomplete show significant grades and ounces produced.
1865 to 1939 producing 6,791 Oz from 6,758 Tons. With the highest grade crushings of 12t @ 7.5 Oz/t (232g/t).
1863 to 1938 with records after 1904 of 2,121 Oz from 540 Tons. Production pre 1887 unreported with the exception of the highest grade mined from the 50ft level at 444 Oz/t (13,764 g/t).
1864 to 1933 1,294 Oz from 271.5t crushed Reports indicate that a reasonable amount of material may have been hand picked.
Queensland has a rich history of gold discovery and production dating back to the golds rushes in the late 1800’s to the modern production facilities operational today. Queensland has many prolific gold provinces in the state that is almost 3 times the size of Texas and 8 times the size of Victoria.