41. In the late 19th century, sand mining and ice harvesting became the chief local industries. 42. There are also sand mines near Rohachyn, the sand being the material for glass manufacture. 43. The town Eneabba is located on the sandplain, as are former and current sand mining operations 44. The 27-hole public course at Harbor Links is built on a former commercial sand mine . 45. After sand mining operations ceased, the tailings ponds were all that remained of the mining operation. 46. There is also a sand mine ( open mine ) near the pool, Shin'chal. 47. Nepean Sand and Gravel Limited established a sand mine on the island at Yarramundi Falls in 1925. 48. Additionally, attempts were made to perform an absolute dating in yet accessible, adjacent sand mines . 49. Its seeds are spread by the river flow and by transport of sand mined from the river. 50. Sand mining on the river bed has led to depletion of the water ways of the river.
