South Australia has a protracted custom in the production and use of stone because the State is poor in timber and early settlers turned to stone for building functions. Older buildings of the town and country areas, erected before the widespread use of metal and strengthened concrete, provide fine examples of the great thing about stone. Tie a string to stakes about an inch above the completed top of the trail for a suggestion. The string ought to follow the natural slope of the path; it doesn't must be level.