15.2200°N, 74.1100°E.
Usgalimal Rock Engravings (Goa Labyrinth) is a labyrinth installation in Sanguem, South Goa, India. The design is a classical 7circuit layout with 7 circuits, 8 walls, built of rock carving. Documented age: ~4000-6000 years old (4000 - 2000 BC). Current condition: intact. Carved on a laterite riverbed of the Kushavati River, the Usgalimal labyrinth is the oldest known labyrinth in Asia — a 3D raised-line design that differs fundamentally from European carved-groove labyrinths. Documentation sources: Saward 2003. Listed in the surveyed catalogue as one node in a larger global registry of the same single design. The labyrinth is one of several hundred sites of this type catalogued globally; each preserves the same unicursal walking-pattern with regional variation in scale, material, and date.
The labyrinth tradition spans at least 4,000 years of documented practice across northern Europe, the Mediterranean, the British Isles, North America, and the Indian subcontinent.