Alto Paraguai and Diamantino gravels

Where: Mato Grosso · South America · approx. -14.45, -56.46 (vicinity only)

Why this spot: Diamond bearing river gravels at the Paraguay headwaters, worked since the 1700s

What turns up: diamond, quartz, gold traces

Access: Gray area.

Garimpo requires licensing, casual gravel washing is informal.

Satellite view, historic-map overlays, tide/flow context and field notes are in the app. Exact research detail is part of Pro.