ACT Biodecurity, I mapped a lot of them higher up the valley ( nearer to road and Centennial Trail) on Field Maps. If you have access to “Weeds not treated”from a couple of years ago that might help.
Hi SilkeSma out team has access to Field maps, we treated some OG in that area last winter, we will be back up there within the fortnight to survey and treat it. Thanks for letting me know Thanks