Hontubby Falls is one of the recorded waterfalls on Poteau River in Le Flore County, Oklahoma, in the Arkansas Valley region. It lies about 2.4 miles south of Heavener and roughly 38 miles south of Fort Smith as the crow flies.
No height measurement has been recorded for it yet.
The Arkansas Valley is a lowland of plains and low ridges between the Ozarks and the Ouachitas, with oak forest, pasture and cropland and a handful of small waterfalls on its ridges.
It is the only recorded waterfall in Le Flore County. Slate Falls, a 54-foot plunge waterfall, is about 19.8 miles away across the state line in Arkansas.
Hontubby Falls is located at 34.8570° N, 94.5848° 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.