At 273 acres, this preserve offers sweeping views from atop the Niagara Escarpment with 2.5 miles of trails through varied terrain.

The preserve where it all began. Nearly 700 acres along Kangaroo Lake protect a remarkable descent from an ancient glacial shoreline ridge down 130 feet to spring-fed Peil Creek and a boreal lakeshore teeming with wildlife.

This 155-acre preserve in a picturesque Carlsville valley protects an extensive vernal wetland so alive with spring peepers that neighbors can't sleep — plus an ongoing restoration of 100+ acres of former farmland to oak woodland and native prairie.

At 445 acres within Sturgeon Bay's city limits, this preserve protects a remarkable ridge-swale landscape, rare dune plants, and one of the region's most critical neo-tropical migratory bird stopovers — land that once narrowly escaped becoming a coal plant.

At 555 acres, the Harold C. Wilson Three Springs Nature Preserve is one of DCLT's largest holdings and a pivotal link in a 17,000-acre wildlife corridor stretching from Sister Bay to the Ridges Sanctuary. Home to the Hine's emerald dragonfly, showy lady's slipper, and some of the premier natural landscape of the western Great Lakes.

This 75-acre preserve — DCLT's first new Nature Preserve in over a decade — features 50-foot glacial riverbanks, naturally reproducing rainbow trout, and a landscape being restored from dairy farm to wild sanctuary.

This 148-acre preserve spans Washington and Detroit Islands, protecting rare old-growth forest, critical smallmouth bass spawning grounds, and important habitat for rare migratory birds.

This 43-acre bird sanctuary on Washington Island protects critical habitat for over 200 recorded bird species, and connects to the historic Stavkirke Chapel meditation trail.

This intimate 26-acre preserve surrounds Anderson Pond with wetlands, old-growth hemlock, an ancient cobblestone beach ridge, and a Niagara Escarpment edge — all woven through with the founding history of Ephraim itself.

This 74-acre preserve features a beautiful creek carved by glacial meltwater, surrounded by old-growth forest.

This 160-acre preserve on the Niagara Escarpment reveals Door County's dolomite bedrock through visible fractures, fissures, and a remarkable vernal pond — plus rare land snails that have survived here since the glaciers.

This 91-acre preserve offers nearly 3,000 feet of undeveloped Lake Michigan shoreline, dramatic clay bluffs formed in the Ice Age, and a landscape rich with grassland birds, shorebirds, and rarely encountered wildflowers.

This 42-acre preserve encompasses the northern half of Little Lake — Washington Island's only inland lake, created when glacial waters receded and sealed off a bay with a cobblestone ridge. Over 5,000 feet of shoreline, spring-fed waters, and a landscape steeped in Native American history.

One of the largest undeveloped tracts on Washington Island, this 159-acre forest was never clear-cut — and the landscape tells that story through massive tip-up mounds, abundant spring wildflowers, and bedrock ridges that were once a glacial lakeshore.

This 103-acre preserve near downtown Egg Harbor protects a rare 30-acre alkaline fen, a rock talus slope of the Niagara Escarpment, and mature forest largely unchanged since Chicago jeweler Ferdinand Hotz — once Door County's largest private landowner — first laid eyes on it over a century ago.