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| Porte des Morts | |
|---|---|
| Name | Porte des Morts |
| Location | Lake Michigan |
| Type | Strait |
| Basin countries | United States |
Porte des Morts is a strait separating Door County, Wisconsin peninsulas and Washington Island, Wisconsin in Lake Michigan. The passage connects the main basin of Lake Michigan with Green Bay and has long been noted for hazardous navigation, regional lore, and numerous shipwreck sites. It features in accounts by European explorers, Indigenous peoples of the Great Lakes region, and maritime historians studying Great Lakes Storm of 1913 era losses and earlier colonial voyages.
The name derives from 19th-century French usage reflecting interactions among French colonists, Métis traders, and indigenous nations, and appears in maps produced by cartographers linked to expeditions like those of Jean Nicolet and Robert de La Salle. Early Euro-American charts by surveyors affiliated with the United States Coast Survey and mapmakers associated with the Province of Quebec and later Michigan Territory propagated the name. Alternative labels used on nineteenth-century nautical charts include terms promulgated in reports to the United States Congress and documentation by navigators from ports such as Milwaukee, Chicago, Detroit, and Green Bay. The toponymy echoes naming practices seen in other Great Lakes locales documented by figures like Samuel de Champlain and administrators connected to the North West Company and the Hudson's Bay Company.
The strait lies between continental landforms near Door County, Wisconsin and the archipelago including Washington Island, Wisconsin and Rock Island (Wisconsin). Hydrographically it mediates currents between Lake Michigan and Green Bay, affecting sea state in ways comparable to narrows such as Straits of Mackinac and passages like Detroit River. Bathymetric surveys conducted by teams associated with the United States Geological Survey and the National Oceanic and Atmospheric Administration reveal shoals, reefs, and abrupt depth changes that influence wave refraction and local wind-driven seiche patterns documented in studies at institutions including University of Wisconsin–Madison, University of Michigan, and Michigan State University. The geomorphology reflects post-glacial processes tied to the Wisconsin Glaciation and is consistent with features mapped by geologists from the United States Army Corps of Engineers and researchers at the Smithsonian Institution.
Indigenous nations such as the Menominee Indian Tribe of Wisconsin, Ho-Chunk Nation, and Ojibwe navigated these waters prior to sustained European contact, as recorded in oral histories collected by ethnographers connected to the Bureau of American Ethnology. During the era of continental exploration, mariners associated with French colonization of the Americas and fur trade networks like the North West Company and American Fur Company incorporated the strait into routes linking posts at Fort Michilimackinac, Green Bay and Chicago. In the 19th and 20th centuries schooners, steamers, and freighters registered at ports such as Milwaukee, Chicago, Duluth, and Cleveland transited the passage, with navigation aids installed and maintained by the United States Lighthouse Service and later the United States Coast Guard. Cartographic and lighthouse records involve personnel like keepers documented in logs archived by the National Archives and Records Administration and scholars at the Great Lakes Maritime Heritage Center.
The passage has yielded numerous wrecks investigated by maritime archaeologists from organizations including the Wisconsin Historical Society, NOAA Office of National Marine Sanctuaries, and universities such as Michigan State University and University of Wisconsin–Milwaukee. Notable salvage and survey projects have referenced techniques developed by teams affiliated with the National Park Service and international researchers familiar with sites like Edmund Fitzgerald (referencing wider Great Lakes wreck studies) and surveys of iron-hulled schooners, steamers, and barges from registries linked to American Steamship Company and other carriers. Artifacts recovered or documented in situ have entered catalogs maintained by museums including the Wisconsin Maritime Museum, Great Lakes Shipwreck Museum, and archives curated by the Smithsonian Institution. Archaeological reports draw on methodologies promoted by the National Marine Sanctuaries Act era practitioners and comparative studies with wreck inventories from Lake Superior and Lake Huron.
Local lore among communities in Door County, Wisconsin and on Washington Island, Wisconsin blends Indigenous narratives, French voyage accounts, and 19th-century maritime storytelling as collected by folklorists working with institutions like the Vilas County Historical Society and researchers at University of Wisconsin–Madison. Writers and journalists from publications in Milwaukee, Chicago Tribune, and regional historians in Green Bay have recounted tales that intersect with broader Great Lakes mythmaking involving storms like the Great Lakes Storm of 1913 and cultural figures such as Ernest Hemingway (as part of Great Lakes literature comparisons) and chroniclers of maritime disaster. Artistic responses include works exhibited at venues like the Door County Maritime Museum and literary nods in regional anthologies archived by the Library of Congress.
Environmental assessments by agencies such as the Environmental Protection Agency, United States Fish and Wildlife Service, and regional programs at Wisconsin Sea Grant address water quality, invasive species including zebra mussel and quagga mussel incursions, and habitat concerns for species monitored by the Great Lakes Fishery Commission and researchers at Michigan Technological University. Conservation measures intersect with initiatives by the National Oceanic and Atmospheric Administration and state entities in Wisconsin coordinated with stakeholders including local governments of Door County, Wisconsin and nonprofit groups such as The Nature Conservancy. Ongoing monitoring involves collaborations among scientists from University of Wisconsin–Milwaukee, University of Michigan, and federal labs examining the impacts of climate variability documented in reports by the Intergovernmental Panel on Climate Change and regional climate assessments involving the Great Lakes Integrated Sciences and Assessments program.
Category:Straits of the United States Category:Lake Michigan Category:Door County, Wisconsin