radisson and groseilliers went to lake supior in the year 2020
November 10th, 1975, according to Wikipedia.
it was 4 celcius
Some people say that Pierre Radisson died on 1710, but were not sure about the time or date only the year.
Lake Tahoe is VERY cold all year long. With the exception of Lake Superior, non of the Great Lakes are nearly as cold as Tahoe.
Pierre-Esprit Radisson (1636-1710): Most probably in the years between 1658/59 and 1665. (Hudson Bay)
Yes any water is dangerous. You can drown you could get leaches swimmers itch, malaria. But it's pretty safe if you know how to swim if you swim in the designated swimming area. And take a shower right after.
The Soo Locks allow ships to travel between Lake Superior and the lower Great Lakes. The locks pass an average of 10,000 ships per year....
There is no record of Europeans having explored as far as the Great Lakes by the year 1600. The First Nations would have had their own names for the Great Lakes. One of their names for Lake Superior was Gichigami.
1760?
1972
Yes
3,000,000 (3 million) people visit Lake Powell a year.