Dunning's Spring

Dunning's Spring is fed not by a large river but by groundwater, a spring that rises from the limestone bluffs and spills down a rocky hillside in a long cascade. The constant flow of cold, clear spring water keeps the falls running through the seasons, though they are fullest and loudest in spring and after heavy rain.

The falls take their name from an early settler who built a mill near the spring, harnessing its reliable water. Today the site is a public park, with the waterfall reachable on a short walk from the parking area and trails climbing into the wooded bluffs above for those who want to explore further.

The waterfall exists because of the Driftless Area, a region that the last ice sheets missed, leaving northeast Iowa a rumpled country of steep hills, rocky bluffs, and deep valleys utterly unlike the flat prairie most people picture in Iowa. Groundwater moving through the soluble limestone here emerges as countless cold springs, some of which, like Dunning's, spill out as waterfalls.

Those same cold springs feed the region's celebrated trout streams and keep its valleys green and cool. The Driftless country is a place of caves, bluffs, spring-fed creeks, and hardwood forest, and a stop at Dunning's Spring is a fine introduction to the geology and beauty that set this corner of the state apart.

The town of Decorah, at the foot of the falls, is one of Iowa's most appealing small cities, home to Luther College and a strong Norwegian-American heritage. The Vesterheim museum here is the leading museum of Norwegian immigration in the country, and the town's shops, cafes, and festivals reflect its Scandinavian roots.

Decorah is also an outdoor town, with the Upper Iowa River for paddling, trout streams for fishing, bluff trails for hiking, and a nesting pair of eagles that has drawn watchers from around the world. Dunning's Spring fits naturally into a Decorah visit, one of several natural attractions that make the town a hub for exploring the Driftless.

The Driftless country of northeast Iowa is the ancestral homeland of the Ho-Chunk, the Meskwaki, and the Sauk peoples, along with the Ioway, for whom the state is named, who lived and traveled through these valleys and along the rivers. Their descendants remain part of the region's living Native communities today.

The cold springs, sheltered valleys, and abundant game of this rugged landscape drew Native peoples for thousands of years, and the great mound-building traditions of the upper Mississippi reach into this region. A visit to Dunning's Spring takes in a landscape shaped by water and time, and rich in a human history far older than the town at its foot.

The closest Boutel™ stays, so you can turn this stop into an overnight. Each is a place we chose through independent editorial review, never a paid placement.

Dunning's Spring, in the town of Decorah in the scenic driftless region of northeastern Iowa, is a beautiful spring-fed waterfall that tumbles down a rocky, mossy hillside in a wooded park setting. The cold, clear spring water cascades many feet over the rocks in a lovely display, framed by lush forest, making it a favorite spot for photos, picnics, and peaceful nature walks. Trails wind through the park and connect to the larger Decorah trail system amid the bluffs and valleys of this hilly, spring-rich corner of Iowa. With its picturesque waterfall, wooded setting, and trails, Dunning's Spring offers a serene natural destination in Decorah, northeastern Iowa.

You can admire and photograph the lovely spring-fed waterfall cascading down the rocky hillside, picnic in the wooded park, walk the trails through the forest, connect to Decorah's larger trail network and nearby ice cave, and enjoy the peaceful natural setting of the driftless bluff country. The waterfall is the highlight, especially beautiful and photogenic amid the green surroundings. It is an easy, serene stop for nature lovers. With its picturesque waterfall, shady picnic spots, and woodland trails, Dunning's Spring offers a relaxing and scenic outing in Decorah, northeastern Iowa.

The rocks around the waterfall are often wet, mossy, and slippery, so watch your footing, keep back from the slick edges and the top of the falls, and supervise children closely near the water and rocks. Wear sturdy shoes for the trails, which can be uneven, and dress for the weather and insects in the wooded areas. Avoid climbing on the wet rocks near the falls, where a slip could cause injury. Staying on stable ground, watching your footing, and keeping children close ensures a safe and enjoyable visit to Dunning's Spring in Decorah, northeastern Iowa.

Late spring through fall is the most pleasant time to enjoy the waterfall and trails, when the weather is mild and the woods are lush and green, with the falls flowing beautifully and fall bringing lovely color to the driftless bluffs. The waterfall flows year-round from the spring, and winter can bring striking ice formations, though the trails and rocks become icy and hazardous then. For the greenest setting and safest, most comfortable visit, aim for late spring through fall at Dunning's Spring in Decorah, northeastern Iowa.

Dunning's Spring is in the town of Decorah in the driftless region of northeastern Iowa, near Decorah's ice cave and trail system, the Bily Clocks Museum in nearby Spillville, within reach of the Great River Road at Guttenberg, Effigy Mounds National Monument, and Pikes Peak State Park along the Mississippi. That makes Dunning's Spring a serene stop to combine with Decorah, the Bily Clocks Museum, and the other attractions of northeastern Iowa on a visit to the state.