Upper Rocky Forty Falls is a 7-foot waterfall on Siemens Creek in Gogebic County, Michigan, in the Northern Lakes and Forests region. It lies about 3.7 miles northwest of Bessemer and roughly 96.1 miles east of Duluth as the crow flies.
At 7 feet it is on the modest side for Michigan, where the typical waterfall with a recorded height stands around 20 feet; it ranks 107th of 116. By form it is a fan, spreading out horizontally as it falls and staying in contact with the rock.
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. Siemens Creek carries 2 recorded waterfalls, and Upper Rocky Forty Falls is the tallest of them.
Gogebic County holds 44 recorded waterfalls, and several are close by. Rocky Forty Falls, a cascade waterfall, is under a mile away. Powder Horn Falls, a 52-foot tiered waterfall, is about 1.9 miles away. Peterson Falls, a 15-foot block waterfall, is about 4.1 miles away.
Upper Rocky Forty Falls is located at 46.5056° N, 90.1213° 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.