Nature Preserve Cretaceous Hills is a 47-acre nature preserve located in the state of Wisconsin. The preserve is home to a diverse range of plant and animal species, including rare and endangered species. Visitors to the preserve can enjoy hiking trails and a boardwalk that winds through wetlands and oak savannas. The preserve is also a popular spot for birdwatching, with over 100 species of birds recorded in the area.

One of the main points of interest in the preserve is the exposed bedrock of the Cretaceous period, which is approximately 100 million years old. The rocky outcroppings and fossilized remains provide a unique glimpse into the ancient history of the area. Visitors can also explore the wetlands and woodlands that are home to a variety of wildlife, including white-tailed deer, raccoons, and coyotes.

The best time of year to visit the preserve is during the spring and summer months when the weather is mild and the flora and fauna are at their peak. The preserve is open year-round, but visitors should be prepared for variable weather conditions in the fall and winter months.

Overall, Nature Preserve Cretaceous Hills offers visitors a unique opportunity to explore a rare and diverse ecosystem while learning about the rich geological history of the area.