page_title: SOIUSA code
section_title: SOIUSA groups' hierarchy
hierarchical_section_title: SOIUSA code / SOIUSA groups' hierarchy
caption_attribution_description: Pyramide soiusa
context_page_description: SOIUSA code is the code used in the International Standardized Mountain Subdivision of the Alps, a proposal by Italian Alpinist, Sergio Marazzi, to re-categorize the mountains and mountain ranges of the Alps. The proposal has been aired since 2005 but has yet to receive official recognition.
context_section_description: SOIUSA divides the Alps in two main regions, the Western Alps and Eastern Alps. These two main regions are further divided in:
  5 major sectors (SR);
  36 sections (SZ);
  132 subsections (STS);
  333 supergroups (SPG);
  870 groups (GR);
  1625 subgroups (STG).
  Using this system, any Alpine mountain can be given a code which shows which region, sector, section, subsection, supergroup, group and subgroup it belongs to.
caption: SOIUSA pyramid showing its groups' hierarchy.
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