Airports 51 to 100
Markdale (Centre Grey General Hospital) Heliport
Orillia/Lake St John Seaplane Base
Orillia-RAMA Regional Airport
Orangeville/Headwaters Healthcare Centre Heliport
Owen Sound / Billy Bishop Regional Airport
Sunderland field/Blackwater creek
North Durham and Kawartha Lakes, Ontario, Canada — 72 km (39 nm) ESE