MUDLARK MAP

Explore › Rio Grande do Sul rockhounding

Quarai / Artigas border agate (BR side)

ROCKHOUNDING PROHIBITED / VIEW ONLY DOCUMENTED

Where: Rio Grande do Sul · South America · approx. -30.39, -56.45 (vicinity only)

Why this spot: Cretaceous basalt

What turns up: Amethyst and agate geodes (same belt as Artigas Uruguay)

Access: Prohibited / view only.

Private mines; buy from operators

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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.