Watch The Salt Mines for Free: How to Stream the Movie Online at 123Movies. . Explores the lives of Sara, Gigi and Giovanna, three Latino transvestites who for years have lived on the streets of Manhattan supporting their drug addictions through prostitution. They made their temporary home inside broken garbage trucks that the Sanitation Department keeps next to the salt deposits used in the winter to melt the snow. The three friends share the place known as "The Salt Mines".