Tours & Landmarks
Much of southeastern Minnesota's bedrock is limestone. The soluble characteristics of limestone produce a unique geology known as karst topography. Common features of karst regions are sinkholes, springs, disappearing streams, bluffs, and cave systems.
In Niagara Cave you will have the opportunity to see natural canyon-like passageways sculpted by water from an underground stream.
Niagara Cave was discovered in 1924 and first opened for tours in 1934. It is one of only two publicly accessible caves in Minnesota. Niagara Cave is privately owned and has had three families stewarding it since its discovery.