Alsina's Trench (2017) is a Documentary, History film that follows documentary film about the "zanja de Alsina", a long trench dug in the Argentinian Pampa in 1876 as way to separate the "civilized" from the "barbarians" during the massacre of indigenous peoples known as "campaña del desierto". Currently, you can watch Alsina's Trench on Amazon Video. Streaming availability may vary by country and platform over time. It has a user rating of 8.0 out of 10 from 2 votes. Fans of documentary movies may also want to explore similar titles below.