Croton Falls Reservoir

Croton Falls Reservoir is a large artificial lake in Putnam County, New York that holds water from the West and Middle branches of the Croton River. The water divides into three sections separated by causeways, and together they can store over 14 billion gallons.

The dam was built in 1911 when cities began moving water across long distances to growing populations. Between 2007 and 2010 the structure underwent major repairs that widened the spillway and reinforced the dam with new anchor cables.

The reservoir represents how early 20th-century engineers redirected rivers to serve a distant city's water needs. Today visitors see a quiet place where human infrastructure and natural surroundings coexist, showing how communities connect across distances through shared water systems.

The area is quiet and good for walking, but most land is not open to the public since it remains part of the water supply system. The best way to see it is by walking the causeways, which offer views across the water and surrounding landscape.

Water from here travels hundreds of miles through an underground tunnel system before reaching New York City, connecting this rural landscape to millions of households in Manhattan and Brooklyn. This hidden network works behind the scenes, showing how a remote place in nature directly supplies the city's daily water.