Title: Landsat 4/5 TM (30m) GeoCover 1990 Worldwide Satellite Imagery Date: 1990 Geography: World Publisher: Land Information Worldwide Mapping, LLC Availability: Available by request to Ryerson community members. More info. Title: Landsat 7 ETM (15m) GeoCover 2000 Worldwide Satellite Imagery Date: 2004 Geography: World Publisher: Land Information Worldwide Mapping, LLC Availability: Available by request to Ryerson community members. More info.