Into the Great Solitude, An Artic Journey by Robert Perkins

This is the  travel adventure of one man in a canoe  on the Black River which flows through the northwest territories of Canada from Great Slave Lake to the Artic Ocean He went in summer time so  he had light for 24 hours...He liked to travel at night when the sun was just on the horizon.  I am halfway through the book and I am enjoying the beautiful descriptions of nature.  He had a camera with him and the trip was made into a PBS documentary.