Karangsambung geological reserve

Where: Central Java · Asia · approx. -7.55, 109.68 (vicinity only)

Why this spot: Melange complex of oceanic rocks exposed in the Luk Ulo valley, Indonesia's classic field-geology campus

What turns up: jasper, serpentinite, schist (look, do not hammer)

Access: Prohibited / view only.

Protected geoheritage area, rock collecting is banned though river jasper picking downstream persists.

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