La Montaña ('The Mountain') was a revolutionary socialist periodical published in Argentina. The newspaper was directed by José Ingenieros and Leopoldo Lugones. The first issue was published on April 1, 1897. The first issue opened with a manifesto, titled "We are Socialists." It was continued by an article against the state ('The Society without a state'), which continued into the second and third issues. La Montaña argued that the state was the result of private property and called for its abolition.
Ingenieros later become a prominent sociologist in Argentina whilst Lugones became a prominent national right-wing poet.