Title: City of Toronto Ravine Protection Ward Map 2003 Date: 2003 Geography: City of Toronto Publisher: City of Toronto Works and Emergency Services Availability: Available for direct download by Ryerson community members. More info. Title: Greenbelt Natural Heritage System Date: 2005 Geography: Golden Horseshoe Publisher: Ontario Ministry of Natural Resources Availability: Available for direct download by Ryerson community members. More info. Title: Greenbelt Plan Data Layers Date: 2005 Geography: Golden Horseshoe Publisher: Ontario Ministry of Municipal Affairs and Housing Availability: Available for direct download by Ryerson community members. More info. Title: Greenbelt Selected Wildlife Habitat Date: 2006 Geography: Golden Horseshoe Publisher: Ontario Ministry of Natural Resources Availability: Available for direct download by Ryerson community members. More info.