Dunning's Spring Falls is a cascade waterfall in Iowa.
Its water comes from Dunning's Spring branch (to the Upper Iowa River). You'll find it in Winneshiek County, Iowa. It is protected within City of Decorah.
This is a short hike waterfall: reached by a short trail, generally under about a mile each way. The walk to the main viewpoint runs about 0.2 miles round trip. Base a visit out of Decorah, the closest town.
When to go: Spring. Like most waterfalls, Dunning's Spring Falls runs highest after snowmelt or heavy rain and can thin out in late summer, so it's worth checking recent streamflow and the land manager's conditions page before a long drive.
