Foster Falls is a waterfall on Potato River in Iron County, Wisconsin, in the Northern Lakes and Forests region. It lies about 13.1 miles west of Hurley and roughly 82.1 miles east of Duluth as the crow flies.
Its height has not been recorded in the source data. By form it is a segmented waterfall, splitting into two or more separate streams as it falls.
The Northern Lakes and Forests are a glaciated landscape of pine, spruce, aspen and northern hardwoods dotted with thousands of lakes and wetlands. Rivers step down over ancient bedrock ledges, with dark, tannin-stained water pouring over rock. Potato River carries 3 recorded waterfalls along its course.
Iron County holds 10 recorded waterfalls, and several are close by. Wren Falls, a punchbowl waterfall, is about 2.9 miles away. Upson Falls, a tiered waterfall, is about 3.4 miles away. Rouse Falls, a block waterfall, is about 3.9 miles away.
Foster Falls is located at 46.4225° N, 90.4586° W. The listing is based on the World Waterfall Database, one of the sources compiled by the U.S. Geological Survey in its inventory of waterfalls and rapids of the conterminous United States. The creek name is confirmed against the federal Geographic Names Information System. The position was verified on aerial imagery. Details on trails, parking and access have not been documented for this waterfall yet.