sentences:  It lies within the cities of Ottawa, Ontario and Pontiac, Quebec.Prior to the construction of the dam and power generating station, the Chats Falls was a waterfall with a 10.7 meter (35 feet) drop in the river, and consisted of a series of chutes running from what is now the eastern end of the dam all the way to the western-most corner of Pontiac Bay ().In their natural state the Chats Falls were a tourist attraction.