Lake Flower is a lake in Franklin County and Essex County in the Adirondack Mountains of Upstate New York in the United States. The lake was created by damming the Saranac River in 1827. It was originally called the Mill PonLake Flower from Riverside Park in Saranac Laked, but was later named for New York Governor Roswell P. Flower. It is the only lake within the village of Saranac Lake. The village and the lake are divided between the towns of Harrietstown and North Elba. The lake shore is almost entirely in private hands.