Where: Altai Krai · Europe · approx. 51.32, 82.57 (vicinity only)
Why this spot: Altai ornamental-stone quarries feeding the Kolyvan lapidary works since 1802, source of tsarist vases
What turns up: banded jasper, porphyry, quartzite
Access: Gray area.
Historic quarries are heritage sites, loose float picking in surrounding hills is informal.
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.