Hi Betty. I have seen Acacia boormanii around this district quite frequently, and I am quite confident this plant is not that species. Can you have another look at it. I have added another close up photo. The leaves were quite long, much longer than A. boormanii, and there were only a few flowers in each cluster.
It is not Acacia elongata, which has 20-42 flowers per head. I use the World Wide Wattle line drawings a lot. For Acacia dawsonii, http://worldwidewattle.com/imagegallery/image.php?p=0&l=d&id=23624&o=1