Where: Texas · North America · approx. 30.8, -99.28 (vicinity only)
Why this spot: Rockhounding locality: Precambrian Llano granite yielding topaz in streambeds
What turns up: topaz (colorless to pale blue), smoky quartz, hematite
Access: Gray area.
Private ranch; recent reporting says Mason County ranches have closed public topaz hunting, so confirm directly before assuming access.
Open in Mudlark Map →
Satellite view, historic-map overlays, tide/flow context and field notes are in the app. Exact research detail is part of Pro.
Pins are approximate by design. This page is historical research, not permission to dig. Check ownership and local law first.