Below is from independent Geologist Les Davis Report included in the Consolidated Tin Mines Limited Prospectus. 

Tableland Tin Dredging (TTD) began bucket-line dredging in Return Creek in the early to mid 1930s. The alluvial area was divided into three parts; upper, middle and lower. The Upper Return Creek produced at least 200 tonnes of concentrate and probably much more. After intermittent sluicing and dredging between 1906 and the early 1930s, for which records are poor, Middle Return Creek was dredged mainly from 1939 to 1952 when about 26 million bcm were recorded as treated for 6114 tonnes of cassiterite concentrate.

Lower Return Creek Project

Lower Return Creek has been explored by TTD but has not been worked. In the drill testing of the Lower Return Creek, drill traverse “Line 13”, approximately 6 km south of the Kennedy Highway crossing of Return Creek, recorded favourable wash grades.

Line 13 comprised 11 holes and tested the alluvial terrace on the western side of Return Creek. An 800 metre width of terrace returned wash grades averaging 930 g/bcm tin. No resource estimate has been made of this high-grade wash. One sub block of EPM 14185 secures the prospective area.

Mid Return Creek Project

ML application 20544 covers a section of alluvials known as Middle Return Creek. Drill testing by (Ravenshoe Tin Dredging )RTD in the early 1980s showed a deep lead under the dredged creek. Cemented wash was mined along the western edge of Return Creek. No estimate has been made of the remaining high-grade wash.