The Sorel Mini Tourist Guide - The 103 islands

Lake Saint-Pierre Biosphere

• The Saint Lawrence's largest flooding plain
• 90% of the territory untouched
• The Saint Lawrence's largest archipelago, with 103 islands
• The Saint Lawrence's largest waterfowl migratory staging area
• The Saint Lawrence's first springtime Canada geese staging area
• The largest heron nesting area in North America
• 20% of all of the Saint Lawrence's marshes
• 50% of all of the Saint Lawrence's wetlands
• 27 rare plant species
• 79 fish species, 2 on the endangered-species list
• 288 bird species observed, 116 are considered nesters
• 12 bird species on Quebec's endangered bird list
• Photos: Lake Saint-Pierre Biosphere