Does anyone know if there is any available information as to how the sites were sorted out
There are 2 stages in "sorting out" the sites
a. Acquiring suggestions
b. Determining which will be selected.
The Parks Canada site does explain in outline how each of these operated
"A public process was used to solicit applications for consideration for Canada's Tentative List for World Heritage Sites. 42 applications were received for sites from across the country, and reviewed by an independent Ministerial Advisory Committee of Canadian experts in the fields of natural and cultural heritage. The Advisory Committee recommended to the Minister of Environment and Climate Change and Minister responsible for Parks Canada the addition to the Tentative List of those properties with strong potential for successful inscription as World Heritage Sites."
For the Committee members seehttps://www.pc.gc.ca/en/culture/spm-whs/indicative-tentative/b
What we seem to be "missing" is any report from that Committee as to exactly HOW they determined "strong potential" - the equivalent UK Committee for instance produced a report which contained their reasoning. I have found here a document describing the "Application Process" for anyone wanting to propose a site (together with necessary background and the timetable - which has been adhered to!)http://www.pc.gc.ca/en/progs/spm-whs/sec06/~/media/progs/spm-whs/pdf/Canada_s_Tentati ve_List_for_WHS_Information_Document-ENG.ashx
But I can find nothing regarding their reasoning in making their selection. So, I have used the "contact us" e-mail address to ask them if they intend doing so in what is supposed to be an "open process" (whilst referring to the document in which the UK Committee had published its conclusions!). It will be interesting to see what their response is (if any!).