Door Peninsula, WI

This 70-mile long peninsula in Lake Michigan is well known for its mixture of northern hardwood and boreal forests, unusual plant communities, occurrence of rare and endemic plants, and 250 mile shoreline with sand dunes and dolomite bluffs.


Modern shore line of Lake Michigan with boreal forest, Newport State Park, Wisconsin.

Modern shore line of Lake Michigan with boreal forest, Newport State Park, Wisconsin. Photo: Lee Frelich.

Shoreline from Nippissing stage of Lake Michigan

Shoreline from Nippissing stage of Lake Michigan, 3,000 years before present, now 1/4 mile inland and colonized by trees, Newport State Park,Wisconsin. Photo: Lee Frelich.

Seagulls and shoreline of Lake Michigan.

Seagulls and shoreline of Lake Michigan. Photo: Lee Frelich.

Shoreline of Green Bay

Shoreline of Green Bay, white cedar forest along water with beech-maple forest inland, Peninsula State Park, Wisconsin. Photo: Lee Frelich.

Black cherry in a gap, Newport State Park.

Black cherry in a gap, Newport State Park. Photo: Lee Frelich.

Old growth beech forest, Newport State Park.

Old growth beech forest, Newport State Park. Photo: Lee Frelich.

Beech-maple-hemlock forest

Above and Below: Beech-maple-hemlock forest on 3,000 year old sand dunes, Newport State Park. Photos: Lee Frelich.

Beech-maple-hemlock forest

Red oak seedling

Red oak seedling colonizing sand dunes, Newport State Park. Photo: Lee Frelich.

Dwarf lake iris

Dwarf lake iris, a Great Lakes endemic species, Newport State Park. Photo: Lee Frelich.

Dwarf ginseng

Dwarf ginseng, Newport State Park. Photo: Lee Frelich.

Spotted coral root

Spotted coral root, Newport State Park. Photo: Lee Frelich.

Large-flowered Trillium

Large-flowered Trillium, Newport State Park. Photo: Lee Frelich.