Hidden Hollow Falls is a 20-foot waterfall in Putnam County, Tennessee, in the Southwestern Appalachians region. It lies about 3.4 miles south of Algood and roughly 57.9 miles east of Murfreesboro as the crow flies.
At 20 feet it is on the modest side for Tennessee, where the typical waterfall with a recorded height stands around 30 feet; it ranks 199th of 332. By form it is a fan, spreading out horizontally as it falls and staying in contact with the rock.
The Southwestern Appalachians are the Cumberland Plateau and its escarpments, a sandstone tableland covered in oak and mixed mesophytic forest and cut by deep gorges. Creeks pour off the plateau rim over sandstone caprock into gorges, creating many tall, dramatic falls.
Putnam County holds 8 recorded waterfalls, and several are close by. Cummins Falls, a 50-foot tiered waterfall, is about 10.5 miles away. Dry Creek Falls, a plunge waterfall, is about 10.7 miles away. Waterloo Falls, a 35-foot block waterfall, is about 10.8 miles away.
Hidden Hollow Falls is located at 36.1502° N, 85.4262° 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 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.