PHYSIOGRAPHIC HISTORY OF NORTHEASTERN ONTARIO 203 



Reference was made in the first paragraphs of this paper to 

 Lacloche Mountains, south of Sudbury, as one of the topographic 



features that can scarcely be included as part of the Precambrian 

 Shield peneplain. They rise in a soHd, broad-based range 60 miles 

 long and as much as 800 feet above the surrounding country. 



