Leppävesi is the 65th (63.59 km) largest lake of Finland in municipalities Jyväskylä, Laukaa and Toivakka. It is quite narrow but long lake in direction south–north. It flows to Päijänne via Vaajavirta. It is part of Keitele Canal, waterway connecting Lake Keitele and Päijänne. National road 9 and Pieksämäki–Jyväskylä railway cross the lake.