Gem-quality topaz turns up in the granite soils of Passchendaele State Forest, on the high Granite Belt near the small settlement of Amiens, northwest of Stanthorpe. The site is a general-permission fossicking area reached by forest tracks off Goldfields Road, open to anyone holding a Queensland fossicking licence. Hand tools only — no machinery, no camping, and no facilities or reliable water, so visitors come self-sufficient. Around it lies classic Granite Belt country of open eucalypt forest and weathered stone.