4 8 



Miles and 

 Kilometres. 



95 m. The limestone forms a low escarpment fac- 



153.3 km. ing northwards, and after a short drift-covered 



stretch coarse red granitoid gneiss shows itself 

 beyond as a plain with low relief. 

 98.5 m. At Washago, the red gneiss, which is ex- 



158.8 km. posed in a quarry near the railroad, contains 

 long bands or thin sheets of grey-green biotite 

 schist, sometimes crumpled and slightly faulted. 

 From this point to Gravenhurst the greyish or 

 flesh-colored Laurentian gneiss rises as hills of 

 moderate height, and the shores and islands of 

 the Muskoka lakes the mainly formed of similar 

 rocks. 



111.4 m. At Gravenhurst, altitude 818 feet 

 179.7 km. (249.3 m -)» a branch railway extends for a mile 



and a half to Muskoka wharf, altitude 749 feet 

 (228.3 m -)> where steamers are in waiting for 

 visitors. The rock cuttings along this branch 

 afford excellent sections of the Laurentian, 

 bringing out clearly the method by which the 

 characteristic banded gneiss has been produced. 



