La Cruz is a town in Corrientes Province, in northeastern Argentina. It serves as the capital of San Martín Department within the province.
The town is located in the northern part of Corrientes Province, near the Paraná River, which forms the border between Corrientes and the neighboring province of Misiones. This places La Cruz in a region characterized by a humid subtropical climate and proximity to the river corridor that defines much of the area's geography and settlement patterns.
As the administrative seat of San Martín Department, La Cruz functions as a local government center for the surrounding rural area. The town remains a small settlement typical of the province's interior, with an economy and daily life tied to the broader agricultural and riverine context of Corrientes.