continental point is northeast of the town of Bernardo de Irigoyen , Misiones ( 26°15′S, 53°38′W ), the westernmost in the Mariano Moreno Range in Santa Cruz ( 49°33′S, 73°35′W ). The northernmost point is located at the confluence of the Grande de San Juan and Mojinete rivers, Jujuy ( 21°46′S, 66°13′W