Nature Preserve Cretaceous Hills

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Last Updated: December 5, 2025

Nature Preserve Cretaceous Hills is a 47-acre nature preserve located in the state of Wisconsin.


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Summary

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.

       

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Park & Land Designation Reference

National Park
Large protected natural areas managed by the federal government to preserve significant landscapes, ecosystems, and cultural resources; recreation is allowed but conservation is the priority.
State Park
Public natural or recreational areas managed by a state government, typically smaller than national parks and focused on regional natural features, recreation, and education.
Local Park
Community-level parks managed by cities or counties, emphasizing recreation, playgrounds, sports, and green space close to populated areas.
Wilderness Area
The highest level of land protection in the U.S.; designated areas where nature is left essentially untouched, with no roads, structures, or motorized access permitted.
National Recreation Area
Areas set aside primarily for outdoor recreation (boating, hiking, fishing), often around reservoirs, rivers, or scenic landscapes; may allow more development.
National Conservation Area (BLM)
BLM-managed areas with special ecological, cultural, or scientific value; more protection than typical BLM land but less strict than Wilderness Areas.
State Forest
State-managed forests focused on habitat, watershed, recreation, and sustainable timber harvest.
National Forest
Federally managed lands focused on multiple use—recreation, wildlife habitat, watershed protection, and resource extraction (like timber)—unlike the stricter protections of national parks.
Wilderness
A protected area set aside to conserve specific resources—such as wildlife, habitats, or scientific features—with regulations varying widely depending on the managing agency and purpose.
Bureau of Land Management (BLM) Land
Vast federal lands managed for mixed use—recreation, grazing, mining, conservation—with fewer restrictions than national parks or forests.
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