Fern Cascades is a waterfall on Iron Spring Creek in Teton County, Wyoming, in the Middle Rockies region, with a total height of about 100 feet. It lies about 19.6 miles southeast of West Yellowstone and roughly 90 miles northeast of Idaho Falls as the crow flies.
At 100 feet it is taller than the typical Wyoming waterfall of about 60 feet, ranking 81st of 230 with a recorded height. The tallest single drop is 70 feet. The water comes down as a tiered waterfall, falling in several distinct steps one after another. It falls in 3 drops.
The Middle Rockies are high, glaciated mountain ranges with alpine peaks, subalpine fir and spruce forest, lodgepole pine and grassy intermontane valleys. Snowmelt streams cascade down glacial valleys and canyon walls.
There are 121 recorded waterfalls in Teton County. Sidedoor Cascade, an 80-foot cascade waterfall, is under a mile away. Lone Star Cascade, a 130-foot tiered waterfall, is about 1.8 miles away. Kepler Cascades, a 125-foot tiered waterfall, is about 1.8 miles away.
Fern Cascades is located at 44.4472° N, 110.8432° 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 exact position has not yet been verified on aerial imagery, so treat the map pin as approximate. Details on trails, parking and access have not been documented for this waterfall yet.