The 'Waterfalls of Ontario' project divides the province into 8 regions. The 8 regions used on the
web site's inventory correspond to the same 8 chapters in the 'Waterfalls of Ontario' book
. Since 2011, this has provided a consistent experience for people that use both resources.
When you divide any area into specific regions there will always be debate. What is included in the GTA? This depends on who you ask and where they live. Where is the boundary of eastern Ontario? Someone in Peterborough may say "We are part of 'Central Ontario'". Why isn't Northwest Region divided up? Kenora is 8 hrs' from Marathon!
At the end of the day, a pragmatic approach had to be used. It couldn't end up with too many regions because that would be confusing. It had to result in book chapters that were not lopsided in length. Should the "GTA" be called "Golden Horseshoe" or "Central Ontario"? Maybe...
Hamiton got its own chapter because it is a special case, with over 100 waterfalls in one small geographic area. There is no other region with this density of waterfalls.
You can browse the waterfalls visually by region using the Inventory Guides