A document from 1965 that divides the (old) city of Toronto into West, Central, North and East sectors.
https://archive.org/details/proposal...e/n33/mode/2up
The distance between Bloor and Bathurst and Bloor and Jane, Danforth and Broadview and Victoria Park, and Rosedale station to Yonge and Teddington Park are all about 6 km.