The Calgary Fire of 1886 occurred on Sunday, November 7, 1886. The fire began at the rear wall of the local flour and feed store, and spread through the community's wooden structures. The recently organized Calgary Fire Department successfully used the recently ordered but not yet paid for chemical engine. Ultimately, fourteen buildings were destroyed or razed in attempts to control the blaze. Losses were estimated at $103,200, however no one was killed or injured. Authorities suggested arson may have been involved, but no arrests were made.
To reduce the potential for future fires, city officials drafted a law that all large downtown buildings were to be built with Paskapoosandstone.