Guide to Significant Wildlife Habitat - Door County Web Map
Guide to Significant Wildlife Habitat - Door County Web Map
Guide to Significant Wildlife Habitat - Door County Web Map
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192<br />
Rock Island Woods State Natural Area<br />
Description: Rock Island Woods consist of 570-acres with a mosaic of plant community types including<br />
northern hardwood forest, northern wet-mesic forest, forested seeps, and shaded cliff community. The<br />
interior plateau of Rock Island contains a mature mesic hardwood forest dominated by beech and sugar<br />
maple. Canopy associates include basswood and red oak. Groundlayer species are wild leek, springbeauty,<br />
trout-lily, large-flowered trillium, common lady fern, blue cohosh, and jack-in-the-pulpit. Rare<br />
plants include drooping sedge (Carex prasina), Chilean sweet cicely (Osmorhiza berteroi), broad-leaf<br />
sedge (Carex platyphylla), and climbing fumi<strong>to</strong>ry (Adlumia fungosa). Several moist swales and forested<br />
seeps are found on north-facing depressions within the forest containing herbaceous species such as<br />
ostrich fern, clustered snakeroot, hairy sedge, and squirrel corn. Dolos<strong>to</strong>ne cliffs and ledges occur on the<br />
margins of the forest and some support an upland stand of nearly pure white cedar with some balsam fir<br />
and white birch along the rocky coastline. About 4 linear kilometers of low moist shaded dolos<strong>to</strong>ne cliffs<br />
are found in the interior of Rock Island. These moist seepage slopes support a lush growth of ferns with<br />
bulbet bladder, fragile, walking, slender cliff brake, northern wood, and intermediate wood ferns. Bird life<br />
is diverse with Spotted Sandpiper, Cliff Swallow, Veery, Ovenbird, American Redstart, and Canada,<br />
Blackburnian, and Black-throated Green Warblers. Rare plants and animals include Common Tern<br />
Caspian Tern, northern ringneck snake (Diadophis punctatus edwardsii), rock whitlow-grass (Draba<br />
arabisans), and mystery vertigo (Vertigo paradoxa), a land snail. Rock Island Woods is owned by the<br />
DNR and was designated a State Natural Area in 2002.<br />
Access: Most visi<strong>to</strong>rs reach the area by taking the Washing<strong>to</strong>n Island ferry from Northport <strong>to</strong> Detroit<br />
Harbor then drive <strong>to</strong> Jackson Harbor and take the passenger ferry <strong>to</strong> Rock Island. No mo<strong>to</strong>rized vehicles<br />
are allowed.<br />
Europe Bay Woods State Natural Area<br />
Description: Europe Bay Woods encompasses 200-acres located on an undeveloped isthmus between<br />
Lake Michigan and Europe Lake featuring over one mile of Great Lakes dune and beach communities,<br />
red pine groves, boreal forest, and northern dry-mesic and mesic forest. Once the ancient shoreline of<br />
Lake Michigan, the isthmus was created through wave action, resulting in the deposition of layers of sand<br />
and gravel. And now contains northern dry-mesic forest dominated by red pine and red oak with scattered<br />
hemlock, beech, and red maple. Common unders<strong>to</strong>ry plants include beaked hazelnut, wild sarsaparilla,<br />
wintergreen, Canada mayflower, and rough-leaved rice grass. Also present is a mature mesic forest<br />
consisting of beech, sugar maple, red oak, and yellow birch on undulating <strong>to</strong>pography. Along Lake<br />
Michigan is an undeveloped sand beach and low dunes grading <strong>to</strong> cobbles<strong>to</strong>ne beach and finally<br />
dolos<strong>to</strong>ne bedrock. The dunes contain extensive mats of bearberry and creeping juniper intermingled with<br />
rabbit-berry, sand cherry, and the state threatened prairie sand-reed (Calamovilfa longifolia var. magna).<br />
The dunes and beach harbor numerous rare plants and animals including bird’s-eye primrose (Primula<br />
mistassinica), dune goldenrod (Solidago simplex var. gillmanii), seaside spurge (Euphorbia<br />
polygonifolia), lesser fringed gentian (Gentianopsis procera), Lake Huron locust (Trimerotropis<br />
huroniana), and beach-dune tiger beetle (Cicindela hirticollis rhodensis). On gently sloping sandy soils<br />
is a boreal forest of balsam fir, white cedar, quaking aspen, white birch, and white spruce with white and<br />
red pine as the site grades in<strong>to</strong> a forested ridge and swale community. Rare boreal forest species include<br />
the federally threatened dwarf lake iris (Iris lacustris), giant pinedrops (Pterospora andromedea), crawe<br />
sedge (Carex craweii), Cape May Warbler, and Black-throated Blue Warbler. Europe Bay Woods is<br />
owned by the DNR and was designated a State Natural Area in 2002.<br />
Access: From Ellison Bay, go east on State Highway 42 about 2 miles, then south and east on <strong>County</strong><br />
Highway NP about 3 miles <strong>to</strong> the Newport State Park entrance. Get a park map at the contact station.<br />
A Wisconsin State Park sticker must be displayed on all vehicles entering the park.<br />
Appendix D – Natural Areas: A Definition &Status Report