La Unión is a compact canton situated midway between the national capital of San José and the former colonial capital city of Cartago, Costa Rica.
La Unión has very good coffee which is recognized internationally as one of the best for its high quality. This is due to the high fertility of its soils thanks to the contributions of the eruption of the Irazú Volcano in 1963 and the excellent balance of the humidity of the rains and the warm summers.