About 465 to 470 million years ago, a meteorite struck near present-day Decorah, Iowa, creating a 3.5-mile (5.6 km) wide impact crater buried beneath the city's surface.
Park in the gravel area just south of the entrance to Dunning’s Spring Park. Walk to the waterfall and be sure to take time to walk across the stone bridge …
Pulpit Rock, a prominent limestone bluff in Decorah, Iowa, is a picturesque natural landmark in Will Baker Park. This striking geological formation, sculpted by centuries of erosion, offers dramatic views …
Park anywhere along Twin Springs Road and follow the stream “up river” until the stream disappears into the ground—you have found the source of Twin Springs! Twin Springs park used …
Cold Water Creek is a spring creek in Winneshiek County that flows into a limestone formation, continues through an underground labyrinth of limestone passages, and then reemerges from a limestone …
The medallion marking the scientific point of impact for the Decorah meteorite was installed at Van Peenen Park in Decorah, Iowa, on or around April 22, 2024. The large bronze …