Horse Block, Rock formation in Falkland Islands

The Horse Block is a rock formation on the western side of the Falkland Islands displaying exposed granite surfaces shaped by erosion over millions of years. Its geological structure reflects the natural forces that created the distinct features visible across the island landscape.

The formation emerged during the breakup of the ancient Gondwana landmass, when tectonic forces created distinct geological features across the region. These processes shaped the terrain that visitors see in the Falkland Islands today.

The name comes from the stack's silhouette, which resembles a horse when seen from the sea. It stands 1.8 km southwest of Pillar Bluff, off Weddell Island's southwest coast, a position that makes it a recognisable mark for vessels working the western waters. The Spanish name Farallón Caballo carries the same comparison.

This formation remains unreachable to visitors due to its remote location and the harsh conditions of South Atlantic waters. Approaching it requires specialized maritime skills and proper equipment.

The name comes from the stack's silhouette, which resembles a horse when seen from the sea. It stands 1.8 km southwest of Pillar Bluff, off Weddell Island's southwest coast, a position that makes it a recognisable reference point for boats working the western waters.