The history of the Gorge reflects the ways humans have used falling water for both scenery and industry. Hydroelectric power from the dam, built in 1912, was used to power electric rail cars, and the lake served as a cooling water source for the now closed coal-fired power plant. Falling water in the Gorge has provided industrial power for generations, while also offering recreational opportunities and scenic beauty. In the late 1800s, tourists from around Ohio and neighboring states traveled here to view the glens and gorges of the area. Though most of the original Cuyahoga Falls are under the lake behind the dam, some remain visible slightly downstream from the dam, where the river runs over Sharpsville sandstone.