It drains an area of 58 square miles ( 150 km ) .
The Lester River , is a 19.3 - mile - long ( 31.1 km ) tributary of Lake Superior , in northeastern Minnesota in the United States .
Lester River drains an area of 58 square miles ( 150 km ) .
The Lester River , is a 19.3 - mile - long ( 31.1 km ) tributary of Lake Superior , in northeastern Minnesota in the United States .