Looking out over a rocky outcropping at a landscape dotted with trees and open green meadows.
Central Sands Overlook View of the Central Sands plains from Lone Rock at Quincy Bluff and Wetlands State Natural Area. © Kevin Sink
Stories in Wisconsin

Central Sands

TNC’s project “seeds” and saplings are helping endangered and threatened species thrive in this unique landscape.

The 2.2-million-acre Central Sands region is one of Wisconsin’s most distinctive landscapes. Sculpted by glaciers and submerged beneath Glacial Lake Wisconsin for thousands of years, the region is a rich mosaic of sandy plains, wetlands, fire-dependent oak and pine barrens, and scattered mesas and buttes. Historically, vast wetlands stretched across much of the landscape, supporting an extraordinary diversity of plants and wildlife.

Roughly one-quarter of the Central Sands Ecological Landscape is publicly owned and managed by county, state and federal agencies, supporting large, connected blocks of protected land that provide critical habitat for some of Wisconsin’s rarest species, including the Karner blue butterfly, Kirtland’s warbler, slender glass lizard and greater prairie chicken. Wolves, bobcats and other large fauna also continue to thrive in the region.

Central Sands At-a-Glance

  • Habitat icon.

    7k

    Since 1990, TNC has helped protect more than 7,000 acres across the Central Sands.

  • Bird icon.

    120k

    Since 2022, TNC has planted 120,000 jack pine trees to establish critical nesting habitat for Kirtland’s warblers.

  • Trees icon.

    3k

    TNC and partners are working to restore 3,000 acres of globally imperiled pine and oak barrens in the Central Sands.

An old photo of a sweeping landscape of green rolling hills, open meadows, and clusters of trees.
Quincy Bluff An archival photo of Quincy Bluff and Wetlands State Natural Area. © Harold Malde

How It Started

TNC’s work in the Central Sands began with a 280-acre “seed” acquisition at Quincy Bluff and Wetlands in July of 1990. Supported by private donors and the newly established Knowles-Nelson Stewardship Fund, this purchase laid the foundation for decades of conservation success.

Over the following years, TNC expanded protection around the original tract, ultimately acquiring more than 3,792 additional acres. At the same time, the organization built a strong partnership with the Wisconsin Department of Natural Resources (WDNR) to restore and manage the landscape through targeted timber harvests, invasive species control and prescribed fire. The success of this collaboration eventually led to the transfer of all Quincy lands to WDNR, completed in 2013, along with a dedicated endowment to support their long-term care.

Wisconsin: From Seed to Scale—Central Sands (2:49) Hannah Butkiewicz, Central Sands project manager for The Nature Conservancy, digs into the partnerships and cross-boundary work that are helping restore and create habitat for an endangered bird species and creating long-term benefits for people and nature in this unique landscape.
A green tree sapling grows between the remnants of burned grasses and branches.
Dramatic Transformation A jack pine seedling planted and growing amidst a stand of recently cleared and burned red pine. © Hannah Butkiewicz/TNC

How It’s Going

While the seeds of the Central Sands work were sown in the early 1990s, TNC’s focus in the area was reinvigorated in the early 2020s after findings from the Resilient and Connected Network, a proprietary TNC project focused on identifying areas of high biodiversity concern, reaffirmed the region’s importance. In 2022, TNC hired a dedicated Central Sands project manager and developed a long-term management framework for the project area. Restoring barrens habitat emerged as a driving focus for the work, and these efforts were kick-started with the acquisition of 3,243 acres in Adams County. Since then, more than 2,000 additional acres have been added across the region, bringing TNC’s total protection across the Central Sands to more than 7,000 acres!

One 150-acre Central Sands tract has received special attention through an ambitious partnership with the American Bird Conservancy and funding from USDA-NRCS. This work, centered on habitat improvement for the state-endangered Kirtland’s warbler, has seen the harvest of a stand of planted red pine (not native to the landscape), large-scale application of prescribed fire, native forb and grass seeding (including Karner blue-friendly wild lupine) and the planting of 120,000 jack pine seedlings. This project has helped transform the landscape, and it’s well on its way to becoming prime habitat for the warbler and many other species.

It’s worth mentioning the collaborative nature of the prescribed fire work at the site, with TNC’s own fire crews working alongside staff from the U.S. Fish and Wildlife Fire Management Program (now part of the U.S. Wildland Fire Service), WDNR, personnel from two local fire departments and personnel from the Adams County Highway Department. This project and others across the Central Sands are great examples of how TNC and local partners can collaborate to achieve shared conservation goals.

Hannah Butkiewicz wears a TNC Fire Team hoodie and stands in a grassy, open field.

By partnering with other county, state and federal partners, we’re able to restore critical oak and pine barrens at a landscape level and work across boundaries versus limiting ourselves to restoring habitat on a specific property.

Hannah Butkiewicz, Central Sands Project Manager

Looking to the Future

Restoration efforts in the Central Sands continue to gain momentum. A U.S. Forest Service Landscape Scale Restoration grant, matched by investments from WDNR and the Jackson and Clark County Forests, is supporting work through 2028 to restore and enhance 3,000 acres of globally imperiled pine and oak barrens. The project aims to improve habitat for at-risk wildlife and plant species, strengthen forest health and increase the resilience of these ecosystems. Conservation activities will take place on state, county and TNC lands across Adams, Clark, Jackson, Juneau, Monroe and Wood counties, helping ensure the Central Sands remains a stronghold for biodiversity in the state.

A small bird with yellow, brown, and white markings perches on top of a pine tree.
Long-distance Travelers Kirtland's warblers spend their winters in the Bahamas before returning to Wisconsin to nest. © Sophie Hauser

International Impact

The Central Sands is a truly unique landscape in the state and the Midwest and serves as a critical habitat and corridor for some incredible plant and animal species. Globally endangered pine and oak barrens and local prairies have been hit hard by historical disruptions such as farming and deforestation, and a lack of fire has interrupted natural regeneration cycles. Species such as the Kirtland’s warbler, greater prairie chicken and Karner blue butterfly, which are only found in a few places in North America, need the Central Sands’ landscapes to reproduce and thrive.

The Kirtland’s warbler, in particular, is a great example of a species that relies on dedicated management efforts to flourish. These travelers spend the winter in the Bahamas and return to nest sites in Wisconsin, Michigan and Ontario. They are an international success story, and our work in the Central Sands is aiding in their long-term survival.