Here is a list of some trails that I know.
If you know of any more please e-mail me. Thanks.

Thanks to Sue for sending in these two trials!

Name Puslinch gravel pits
Location South of the 401 by Barbers Beach (Puslinch Lake)
Terrain  
Length 25-30 min.
Difficulty  
Map  
Picture  

 

Name  
Location Conservation Area of Road 34 which is just north of the 401. Road 34 runs from Highway 6 (Hanlon Expressway) to 35 (which is also called Townline Road)
There is parking on the north side of Road 34.
Terrain  
Length  
Difficulty  
Map  
Picture