Are Canadian Charts required in Georgian Bay/North Channel upper Lake Huron/Ontario?

[Othergoose]

Go to the site for Lights and Buoys and remark your old charts.

[Svan]

The Richardson book is nice for a detailed view but useless for passage planning. They also show no soundings and poor detail for the entirety of the 5x12 nm McGregor bay north of Killarney. There are medium scale printed maps one could pick up.
Look for the “friends of the French river provincial park” map which shows dozens of campsites (fire pits) throughout the north shore of a Georgian. Ditto Massassauga.