Salmon River Falls, Natural waterfall in Oswego County, New York, United States.

Salmon River Falls is a 110-foot waterfall on the Salmon River in Oswego County, New York. The water drops over a dark rock face: Oswego sandstone at the crest, softer Pulaski shale below. The crest forms a long, uneven horizontal edge, and on the left a separate vertical column pours over a protruding section. The water breaks into spray and churns into a dark pool at the base.

Before European settlement, the Onondaga, Oneida and Cayuga used the falls as seasonal fishing grounds, harvesting Atlantic salmon blocked from moving upstream. Roads reached the forested area in the early 1800s, and the Cataract House lodge and dance hall operated nearby from 1860 to 1888. Dams built between 1912 and 1930 and a 10,000-foot pipeline bypassing the falls reduced the flow; the state acquired the site in 1993 and began releasing minimum flows in 1996.

The falls were long called High Falls in some sources, and between 1860 and 1888 The Cataract House, a tourist lodge with a dancing establishment, operated beside them; a food and novelty stand followed in 1896. Today the site is a state Unique Area with interpretive kiosks, and the plunge pool and gorge walls within 15 feet of the falls are off-limits except along a dedicated trail to the base.

Access is available through a parking area on Falls Road, with viewing platforms positioned to see the water from different angles. The best time to visit is during dry weather when the trails around the site are easy to walk on.

During winter, the waterfall freezes and transforms into an ice climbing destination that attracts experienced climbers from the region. This frozen form offers a very different experience compared to visiting during warmer months.