BTW not too many of the Hema map series have better than 1:250,000 resolution.
The pixel resolution of the Natmap 250k is 31.8m/ pixel
Fraser island and maybe one or two others are better.
So the best Hema Fraser island map is 16.52 ..... or around the 100k equivalent.
25k maps are in the order of 4.6m/ pixel.
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