The Mabouya Valley in eastern St. Lucia in Dennery District contains two rivers, the Grande Rivière du Mabouya and the Dernière Rivière. The forested hillsides have, in places, been cleared for farming and the valley receives annual rainfall of 3000 mm (118 inches) at its head in Barre de l'Isle and 2000 mm (79 inches) at La Caye.

• Dennery village (seat of Dennery District), 13°54′51″N 60°53′29″W / 13.91409°N 60.89132°W / 13.91409; -60.89132 (city of Dennery)
• Grande Rivière du Mabouya, 13°56′10″N 60°54′31″W / 13.93622°N 60.90859°W / 13.93622; -60.90859 (Grande Rivière du Mabouya) (mouth)
• Dernière Rivière, 13°56′11″N 60°54′31″W / 13.93642°N 60.90857°W / 13.93642; -60.90857 (Dernière Rivière)
• Dernière Rivière village, 13°57′14″N 60°55′28″W / 13.95377°N 60.92433°W / 13.95377; -60.92433 (Dernière Rivière village)
• Mabouya Valley, 13°56′00″N 60°56′00″W / 13.93333°N 60.93333°W / 13.93333; -60.93333 (Mabouya Valley)
• Maybouya village, 13°56′04″N 60°55′52″W / 13.93451°N 60.93118°W / 13.93451; -60.93118 (Maybouya village)

• List of rivers of Saint Lucia
• Dennery District