Obelisk of Montevideo, Obelisk at the intersection of 18 de Julio and Artigas Boulevard avenues, Montevideo, Uruguay

The Obelisk to the Constituents of 1830 is a three-sided obelisk of pink Uruguayan granite rising 40 metres at the meeting of Artigas Boulevard and 18 de Julio Avenue, at the entrance to Parque Batlle. Sculptor José Luis Zorrilla de San Martín placed three bronze figures on its faces: Law, Liberty and Force. A hexagonal fountain encircles the base, with six spheres on its outer rim and the names of the banks that funded the tribute engraved on the edge.

The monument was built in 1930 to commemorate the centennial of Uruguay's first Constitution. It honors the members of the General Assembly who drafted this foundational document for the nation.

In 1983 the obelisk was the site of the Río de Libertad rally, the largest demonstration in Uruguay's history, which demanded an end to the civil-military dictatorship. The 1938 monument itself honours the assembly that approved the first Constitution in 1830, and its west face carries the inscription "A los constituyentes de 1830".

The monument is located at the entrance of Parque Batlle and can be reached easily through several public transportation stops. The surrounding area offers open space that is accessible on foot and provides good views of the neighborhood.

The sources describe the Buenos Aires obelisk as similar but larger, not as inspired by this one. That monument, at the intersection of 9 de Julio and Corrientes avenues, was built six years later to mark the 400th anniversary of the first founding of Buenos Aires.