Where: Mexico · North America · approx. 19.7, -98.75 (vicinity only)
Why this spot: Quaternary rhyolitic volcanism
What turns up: Black, gray-banded and mahogany obsidian nodules
Access: Gray area.
Ejido land and workshops; obsidian widely worked and sold. Ask before collecting.
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.