An area located along the central section of the Strzelecki Track has been explored for clean fluvial or aeolian sands of Quaternary age which could be used to provide extractive material suitable for road-building purposes, or in certain cases for downhole injection as a proppant in the hydraulic fracturing of natural gas reservoirs. An atypical stretch of exposed coarser sediments within the channel way of the present-day Strzelecki Creek was targeted to find appropriate sand facies. Any sand resource found here was envisaged as being very market competitive because it would be suitable for surface mining operations and hence be a likely low-cost production, and would be close to demand and infrastructure in the Cooper Basin, thus taking advantage of low delivery costs. During the first licence year, 4 reconnaissance 1-2 kg surface sand samples were collected along the side of the local public road, and were sent to a commercial physical testing laboratory where they underwent two grain size distribution tests, two grain-shape measurements, six crush strength tests and had five sets of photomicrographs captured. The sieve analysis results showed that sand grain size distributions desirable for fracked reservoir proppant were present, and the grain crush strength test results were similarly apt. Grain shape determinations yielded sphericity values of 0.7 - 0.8 and roundness values of 0.3 - 0.7. During Licence Year 2, to follow up on the positive indications of sand quality, five hand auger holes were drilled by the licensee to depths ranging from 2 m to 6 m to sample specific regolith horizons above the water table. In general these holes had to be terminated prematurely due to encountering wet collapsing sands, hard clay or gypcrete. 26 sand samples recovered from four of these holes were given in-field simple qualitative tests to assess the sands' predominant mineralogy, grain size and grain shape, to prioritise what samples to submit for physical testing at the same non-accredited laboratory as used previously. These samples were: from hole PG01, five taken at 50 cm intervals from 3.5 m to 5.9 m depth; from hole PG05, five taken at 50 cm intervals from 3.5 m to 6.0 m depth. At the laboratory, these 10 samples underwent sieve analysis to yield in total 15 separate grain size fractions, and these fractions were subjected to 15 crush tests (on acid-washed samples) and 13 grain shape determinations. Sand quality results similar to those reported previously were obtained. During licence Year 3, progress towards delineating the best site on the licence for obtaining proppant grade sand became delayed, because an allied coal seam gas development project being run by a local oil and gas operator / potential farminee to EL 5864 needed to have an appraisal horizontal drilling programme completed and assessed first. If successful, the project would require the supply of suitable proppant sands from a large resource. At this stage, Nasaco had identified another 16 untested sites that awaited auger drill testing to help with defining such a resource. It was planned to drill up to 80 holes to 10 m depth along traverses to sample and evaluate the sediments at these sites, at a cost of ~$150,000. No work occurred on EL 5864 during the next year, at the end of which a decision was made to fully surrender tenure.