This Envisat satellite image captures the five Great Lakes of North America, prominently featuring Lake Michigan and Lake Huron at the centre, with Lake Superior to the upper left, and Lakes Erie and Ontario on the right. The northern regions display Canadian territories with snow-capped mountains.

• Image 1: Satellite: Envisat, Instrument: Medium Resolution Imaging Spectrometre (MERIS), Acquisition Date: 14 Nov 2004, Orbit Number: 14165, Band Combination: 7, 5, 2 (RGB), Orbit Direction: Descending