page_title: Lac de Sylans
section_title: Ice Harvesting Factory
hierarchical_section_title: Lac de Sylans / History / Ice Harvesting Factory
caption_attribution_description: Le lac de Sylans
context_page_description: Lac de Sylans is a lake at Le Poizat in the Ain department, France.
  It is significant for the ruins of one of the 19th century's largest ice harvesting factories and the occasional outflow of water in two directions.
context_section_description: The ice factory was built in 1865 after Joachim Moinat had the idea to use the very pure ice that covered the lake every year in his café. This purity meant the ice could be used as is without purification.  To store the ice, he built a wooden hut.  In 1875, a second building was erected.  This one was equipped with cavity walls in which the cavity was filled with sawdust for better thermal insulation.
  In 1885, he sold the business to the société des glacières de Paris.  There followed, between 1890 and 1910, the construction of further buildings in wood then in stone.  These building served as dwellings offices, a canteen, a stable and a repair workshop.
  Later when the Haut-Bugey railway line was opened, 20 to 30 wagons loaded with 10 tonnes each departed every day of the summer for Paris, Lyon, Marseille, Toulon and even Alger.  These loads were covered with a jute mat, straw and a tarpaulin for insulation.   Losses were reasonable, as for 10 tonnes shipped, about 8 arrived in Paris.
  By 1880, the factory was producing 300,000 tons per year on average.  Machines able to make ice from water appeared around 1900.  The warmer winters of 1911 to 1913 and the First World War saw an end to production in 1917.
  Today, only a few traces remain of what was one of the largest ice factories of the 19th century.  Some restoration has taken place, revealing how the warehouses might have been.
caption: Lac de Sylans
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