Gold-bearing Algoma-type iron formations and their high-grade metamorphic host rocks of the Ashuanipi Complex, Superior Province, Canada, have been the subject of a microthermometric fluid inclusion study. Isochores calculated for early C0₂-rich fluid inclusions, in conjunction with published geothermobarometric data, indicate a clockwise retrograde P-T-t path for the Ashuanipi Complex. Late low salinity H₂0 fluid inclusions are spatially associated with gold showings and yield isochores which suggest, together with arsenopyrite thermometry and metamorphic petrology, that gold was precipitated, at least partially, during post-peak metarmorphic cooling and uplift. One of the gold occurrences is characterized by CH₄-N₂-rich fluids which could be responsible for the main gold deposition event or for secondary gold enrichment processes in that showing.