Porte des Morts

Porte des Morts
"Detail of NOAA Chart #14909"
"Closer detail of NOAA Chart"

Porte des Morts, also known as Porte des Mortes, the Door of Death, and Death's Door is a strait linking Lake Michigan and Green Bay between the northern tip of the peninsula of Door County, Wisconsin and a group of islands historically known as the Potawatomi Islands and dominated by Washington Island. The name is French and means, literally, "the door of the dead".


Origin of the name

According to traditions given by the native Americans to area fishermen in the 1840s and reported both by Captain Brink, a government engineer who surveyed the area in 1834, and by Hjalmar R. Holand in his two-volume history of Door County,[1] the ominous name is traced back to a battle between the Winnebago and Potawatomi tribes. Holand's report is essentially as follows:

The Winnebago, having migrated from the southwest, were not content to share the land with the gentle Potawatomi, who had arrived before them. They had already pushed the latter from the peninsula to the islands and were preparing to attack the islands, too. The Potawatomi devised a desperate plan for defense. They sent three scouts to spy out the Winnebago positions. The spies were then to light a signal fire so the Potawatomi warriors could land safely and attack the Winnebago from behind. The spies, however, were discovered and captured. Two died with their secret, but one revealed the plan.
Knowing the plan, the Winnebago decided to use it to their advantage and devised a two pronged attack. They chose a high bluff where there was no safe landing and set a signal fire there. There they planned to intercept the war party as they were helpless in their canoes. They sent a second group to attack the villages of the Potawatomi, which would be defenseless with their warriors gone.
When the Potawatomi defenders left the islands, the weather was relatively calm, but by the time they were mid channel, a stiff north wind set in. They pressed on, however, confident that they could land safely near the signal fire. When they arrived, the Winnebago attacked, raining destruction from above. They could not land, and the strong north wind and waves prevented their fleeing to safety. Canoes capsized in the surf and were dashed against the rocks. A few Potawatomi managed to climb to a ledge a short distance above the waves. Some of the Winnebago jumped down to the ledge and fighting continued there until a large wave took them all to their deaths in the lake.
After the battle at the bluff, the remaining Winnebago waited for the return of their second party. The wind and waves that had prevented the Potawatomi from fleeing apparently also caught the Winnebago raiding party. They were never seen again. The Winnebago took it as a sign that they should not try to cross to the islands again, for it was, they concluded, a doorway to death.

The report seems to be biased in favor of the Potawatomi. The Winnebago, or to use their own chosen name the Ho-Chunk, do not describe themselves as fierce. Various historical accounts indicate that it was the Potawatomi who were the newcomers to the area and that the Winnebago had recently suffered greatly at the hands of the Illinois.[2][3] If this account accurately gives the origin of the name, the battle probably occurred in the mid seventeenth century, shortly after the Potawatomi settled in the area and before the French used the area enough to name the strait.

If the Porte des Morts battle happened it could have occurred here at Door Bluff (also called Deathdoor Bluff). This is typical of a number of places on the northern coast of the Door Peninsula. The escarpment seen here is between 15 and 20 feet high. Above that is a gentle slope up for about 50 feet and another similar escarpment above that. The broad flat rocks at the base of the cliff are high enough to be out of most of the surf in stormy seas, yet low enough to be awash in a rogue wave. At the time this photo was taken, the lake was about 1.8 feet below its long term average level. The wind was from the south at about 15 mph, gusting to about 25 mph. In the "Detail of NOAA Chart #14909" (above), Deathdoor Bluff is the point at the far left of the chart.

Other explanations for the origin of the name have been offered. One account involving Native Americans has a tribe building a ring of campfires on thin ice to lure their enemies through the strait overnight. The plan worked and the attackers perished. Another mentions a storm in which canoes were dashed against the rock but mentions no battle. It has also been said that the French, not wanting the English to establish fur trade routes to Wisconsin and other surrounding areas, named the passage to discourage and scare sailors from sailing through the strait.[4] Yet the strait had its name well before the English were coming to the Great Lakes.

It is possible that the "doorway to death" name has a much larger significance. The written history of the area between Jean Nicolet's visit to Green Bay in 1634 and the return of French trappers in the late 1650s is virtually a blank page. Thus, the only reasons that can be found for the drastic reduction in the population of the Winnebago in that time period - from estimates of between ten and twenty thousand to five, six, or seven hundred - are those that can be gleaned from the natives' own oral traditions, which by the time they make it to a recorder's pen often mix and confuse details of separate events. R. David Edmunds relates that after the Winnebago successfully repulsed the first advance of the Potawatomi, they lost several hundred warriors in a storm on Lake Michigan.[5] Carol Mason also refers to the loss of 600 warriors, but does not indicate on which body of water they were lost and questions the credibility of the report.[6] Lee Sultzman says Lake Winnebago was the location and that 500 warriors were lost in a failed attack against the Fox.[3] James Clifton says more than 500 were lost in a battle with the Sauk, who entered northeast Wisconsin about the same time as the Potawatomi.[7] Others say that the Winnebago were allied with both the Fox and Sauk.[8] Edmunds opines that such a loss could not by itself result in the near decimation of the whole people, and offers that two other causes should also be included.[9] The Winnebago during this time apparently also suffered greatly from a disease, perhaps one of the European plagues like smallpox (although the Winnebago say it resulted in the victims turning yellow, which is not a trait of smallpox).[10] Finally, it appears that a sizeable contingent of their historic enemies, the Illinois, came on a mission of mercy to help the Winnebago at time of suffering and famine - what one might expect after the loss of 600 men who were also their hunters. Perhaps remembering former hostilities, however, the Winnebago repaid the kindness by adding their benefactors to their diet. The Illinois were enraged and in the ensuing retaliation they almost totally wiped out the Winnebago.

It is not likely that there was more than one separate incident in which upwards of 500 or 600 warriors were lost in a storm. The fact that only warriors are mentioned suggests that they were lost in some kind of military effort. It does seem clear that the initial influx of Potawatomi (about 1641 to 1643) was repulsed, and that later the Potawatomi returned in strength. By the time the French returned to the area the Potawatomi were well established in northeast Wisconsin, not only in the Potawatomi Islands of Door County, but also at what is now the city of Green Bay. Lake Michigan is much more capable of producing deadly waves than is Lake Winnebago. While it must remain speculation, it is nonetheless reasonable to conclude that the Porte des Morts battle really happened, that it was the end of the Winnebago's pushing out the first wave of Potawatomi, that the loss of 600 warriors in a storm corresponds with the loss of warriors in the Porte des Morts tradition, and that the event marked not just the doorway to death for those who died at the bluff and in the storm, but the beginning of events that brought death to nearly the whole tribe. One may never be certain as to the origin of the name, but it seems to suggest a significant event, and the records of the French tie no event of their history to the name.

A grim reputation

"A small ledge just above the water at Door Bluff County Park, measuring about 6 feet by 18 feet."

Since that time the strait has lived up to its name. The strait is littered with shipwrecks. Some say it has more shipwrecks than any other section of fresh water in the world.[4] A number of factors combine to make this a particularly dangerous strait. Older sailing vessels were not as maneuverable as modern motor boats. The strait is relatively narrow. Shoals extend far from shore. Winds on the Great Lakes are notoriously unpredictable and can increase to gale forces and more almost without warning. The strait is also a combination of three separate passageways. Plum Island and tiny Pilot Island are almost in the center of what is commonly considered Death's Door, and pose hazards. While the Porte des Morts Passage proper to the south of Plum Island is relatively hazard free, the Detroit Island Passage to the north of Plum Island has many. The water between Detroit Island and Washington Island hides shoals that are not navigable, except by small boats like canoes.

Ships lost in Death's Door include the Fleetwing in 1888, the A.P. Nichols, Forest, and J.E. Gilmore in 1892. While deadly to ships, however, the wrecks of Death's Door have taken relatively few human lives.

So great is the reputation of Porte des Morts that a number of shipwrecks have been attributed to it that did not happen in the strait. One of these is the loss of the Griffin (also spelled Griffon), the first sailing ship on the upper Great Lakes. The Griffon was last seen sailing from Washington Island, but it was sailing north, not south into Death's Door. One account does say that she sailed from Detroit Harbor, which does open on Death's Door, but the same account says those on shore watched it sail north, which is impossible from that location. Another possible point of departure for the Griffin would be Washington Harbor on the north side of Washington Island or even Rock Island, which lies just northeast of Washington Island. There have been many who have claimed to have found the remains of the Griffin, but not one has been verified. The most recent "discovery" is awaiting funding and legal process before it can collect sufficient evidence to support or refute the claim.[11] Another ship erroneously said to have grounded in Death's Door is the Louisiana, which records clearly show beached and burned on the shore of Washington Harbor [12][13]

It might be asked, "Why did people use Death's Door if it is so dangerous? Isn't there a much safer passage between Green Bay and Lake Michigan just north of Washington Island?" The answer, simply, is that "time is money". Death's Door was used primarily by vessels sailing between ports along Green Bay and those along middle to southern Lake Michigan. Going around Washington Island would add roughly thirty miles to the voyage. At a time when ships made between five and ten miles an hour in good sailing weather, that meant three to six additional hours. So captains used Death's Door often until the Sturgeon Bay ship canal was completed in 1878. By using the canal sailors could not only avoid Death's Door, but especially could shorten their voyage by over a hundred miles.

Porte des Morts Passage today

Porte des Morts Passage from beach at Northport, showing ferry harbor breakwater and Plum Island at left, Detroit Island center, and Pilot Island at right. An abandoned lighthouse is the only structure on Pilot Island.

The only commercial vessels that regularly navigate Death's Door today are the ferries that provided transportation to and from Washington Island. Since Door County is a favorite tourist area, many pleasure craft ply these waters. The Sturgeon Bay Ship Canal, completed in the late 19th century, now allows ships to travel between Green Bay and southern Lake Michigan via a shorter and safer route which cuts across the Door Peninsula.


  1. ^ Holand, H.R. History of Door County, Wisconsin: The County Beautiful, S.J. Clarke Publishing Company, Chicago, 1917, Vol. 1, pages 39,40; reprinted in 1993 by Wm Caxton Ltd, Ellison Bay, Wisconsin, ISBN 0-940473-23-2
  2. ^ Potawatomi History
  3. ^ a b Potawatomi
  4. ^ a b OnMilwaukee.com Visitors Guide: Beyond Milwaukee: Deaths Door Strait
  5. ^ Edmunds, R. David, The Potawatomis: Keepers of the Fire, University of Oklahoma Press, Norman, 1978, page 5
  6. ^ Mason, Carol I., Introduction to Wisconsin Indians, Sheffield Publishing Co., Salem, WI, p. 66
  7. ^ Clifton, James A., The Prairie People: Continuity and Change in Potawatomi Indian Culture 1665-1965, The Regents Press of Kansas, Lawrence, 1977, page 37
  8. ^ Winnebago Indian Tribe
  9. ^ Edmunds, R.D., p. 5
  10. ^ Winnebago
  11. ^ LaSalle-Griffon - First European Vessel to Sail the Upper Great Lakes
  12. ^ Door County Advocate, November 13, 1913, page 1
  13. ^ Door County Democrat, November 14, 1913, page 1

External links

Coordinates: 45°17′36″N 86°57′31″W / 45.29333°N 86.95861°W / 45.29333; -86.95861

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