Hi Jason, there are 250k topographic map datasets at geoscience that contain contour information. I can't remember if they are 20 or 50m intervals. They are free, and available as shape files all over Queensland. Tiles are normally 40 x 40km. I have found this very useable particular in the Connors range area where peaks are not obvious because of the heavy vegetation.
I hope this helps Sent from my iPhone > On 5 May 2014, at 10:41 am, Jason Ward <jasonjwa...@gmail.com> wrote: > > Hi Tim, > > Agree with a zoned verification approach. To your point about accuracy would > the OpenCycleMap countours be a valid positional accuracy check? If I read > this link [1] correctly they are =/- 16m in vegetated areas and +/-5m. > I note that this maps tiles have implemented at 10m intervals as well and if > I were verifying this peak (Mt Toby) I'd suggest it could be made more > accurate (moved left approx 150m). > > Would that be a better approach? [3]: FYI. > > [1]: > http://www.nrm.qld.gov.au/services_resources/item_details.php?item_id=34171 > [2]: http://www.openstreetmap.org/#map=16/-21.1074/148.8531&layers=CN > [3]: http://wiki.openstreetmap.org/wiki/SRTM > > > Cheers, > > Jason > > >> I don't want to be a downer but I found the information to be so inaccurate >> as to border on useless.
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