http://www.ontarioparks.com/covid19

No mention of "Ontario Residents Only" in the announcement for any of the back country parks as has occurred in other provinces.

One proviso is that groups are limited to five unless all from the same household.

The border is now the last, yet formidable, obstacle for our American friends. A lot can happen in two months, Jackfish. Wishing you and everyone else south of the border with late season reservations all the very best!

Backcountry re-opening details for Quetico
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Reservations are required to camp at this park.
Check-in procedures: check-in at the park upon arrival to obtain your camping permit. Contact the park to confirm hours of operation prior to your arrival date.
Closed entry points: access to Quetico from the Cache Bay, Prairie Portage and Lac La Croix Entry stations is closed at this time due to the temporary closure of the Canada – United States border to non-essential travel. For more information on border crossing please visit the Canada Border Services Agency website.

If the border would open....our Aug/Sept trip might happen yet!

cyclones30: "If the border would open....our Aug/Sept trip might happen yet! "

I think by August 1 things will open up

I'm hoping you're right about that. Maybe even by July 21st.