The Sister Islands are two islands in Lake Michigan. They are located in the bay of Green Bay, in the town of Liberty Grove, Wisconsin.[2] At one point the islands were connected, but higher water levels have eroded the size of the islands. Combined, the area of the islands sits at 6 acres (2.4 ha).
Sister Islands
In June 2020 when this picture was taken the average lake level was 177.45 meters above sea level;[1] the relatively high lake levels reduced the size of the islands that year.
There are many species of birds that nest on the islands. In 1964 there were an estimated 1,350 to 1,650 breeding pairs of herring gulls on the islands.[3] Both islands are owned and operated by the Wisconsin Department of Natural Resources, and they are protected as the Sister Islands State Natural Area[4]
The shipwreck Meridian lies in the water south of the islands.[5]
Big and Little Sister islands, as drawn from photos taken in 1976
Galleryedit
Big Sister Island
Little Sister Island
Big Sister Island (left, foreground) and Little Sister Island(right, background)
Shoal between the islands
Referencesedit
^Lake Michigan-Huron: Monthly Lake-Wide Average Water Levels (1918 - Present), Great Lakes Environmental Research Laboratory, National Oceanic and Atmospheric Administration, accessed February 25, 2022
^"Report For Sister Islands". USGNIS. Retrieved 17 April 2018.
^Town of Liberty Grove Comprehensive Plan 2003, Part 2, page 29 (page 3 of the pdf)
^"Sister Islands". Wisconsin DNR. Retrieved 17 April 2018.
^. Wisconsin's Great Lake Shipwrecks. Archived from the original on 2 December 2010. Retrieved 17 April 2018.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
^"NASA EarthData Search". NASA. Retrieved 30 January 2016.
External linksedit
Sister Islands, Web-Map of Door County, Wisconsin
Sea Gulls Travel to Many Lands, Banding on Sister Islands Shows, Door County Advocate, Volume 70, Number 18, July 10, 1931, page 1
This article about a location in Door County, Wisconsin is a stub. You can help Wikipedia by expanding it.
sister, islands, wisconsin, sister, islands, islands, lake, michigan, they, located, green, town, liberty, grove, wisconsin, point, islands, were, connected, higher, water, levels, have, eroded, size, islands, combined, area, islands, sits, acres, sister, isla. The Sister Islands are two islands in Lake Michigan They are located in the bay of Green Bay in the town of Liberty Grove Wisconsin 2 At one point the islands were connected but higher water levels have eroded the size of the islands Combined the area of the islands sits at 6 acres 2 4 ha Sister IslandsIn June 2020 when this picture was taken the average lake level was 177 45 meters above sea level 1 the relatively high lake levels reduced the size of the islands that year Sister IslandsShow map of WisconsinSister IslandsShow map of the United StatesGeographyLocationGreen Bay Lake MichiganCoordinates45 13 28 N 87 08 46 W 45 2244317 N 87 1462240 W 45 2244317 87 1462240Area6 acres 2 4 ha Highest elevation581 ft 177 1 m AdministrationUnited StatesStateWisconsinCountyDoor CountyTownLiberty GroveThere are many species of birds that nest on the islands In 1964 there were an estimated 1 350 to 1 650 breeding pairs of herring gulls on the islands 3 Both islands are owned and operated by the Wisconsin Department of Natural Resources and they are protected as the Sister Islands State Natural Area 4 The shipwreck Meridian lies in the water south of the islands 5 Contents 1 Climate 2 Diagram 3 Gallery 4 References 5 External linksClimate editSister IslandsClimate chart explanation J F M A M J J A S O N D 63 5 10 52 9 14 49 1 6 97 6 0 86 11 3 91 15 9 105 20 16 96 20 14 96 17 14 107 9 6 80 8 2 57 3 1 Average max and min temperatures in C Precipitation totals in mmSource 6 Imperial conversionJFMAMJJASOND 2 5 23 14 2 16 7 1 9 34 21 3 8 43 32 3 4 52 37 3 6 59 48 4 1 68 61 3 8 68 57 3 8 63 57 4 2 48 43 3 1 46 36 2 2 37 30 Average max and min temperatures in F Precipitation totals in inchesDiagram edit nbsp Big and Little Sister islands as drawn from photos taken in 1976Gallery edit nbsp Big Sister Island nbsp Little Sister Island nbsp Big Sister Island left foreground and Little Sister Island right background nbsp Shoal between the islandsReferences edit Lake Michigan Huron Monthly Lake Wide Average Water Levels 1918 Present Great Lakes Environmental Research Laboratory National Oceanic and Atmospheric Administration accessed February 25 2022 Report For Sister Islands USGNIS Retrieved 17 April 2018 Town of Liberty Grove Comprehensive Plan 2003 Part 2 page 29 page 3 of the pdf Sister Islands Wisconsin DNR Retrieved 17 April 2018 Final Voyage Wisconsin s Great Lake Shipwrecks Archived from the original on 2 December 2010 Retrieved 17 April 2018 a href Template Cite web html title Template Cite web cite web a CS1 maint bot original URL status unknown link NASA EarthData Search NASA Retrieved 30 January 2016 External links editSister Islands Web Map of Door County Wisconsin Sea Gulls Travel to Many Lands Banding on Sister Islands Shows Door County Advocate Volume 70 Number 18 July 10 1931 page 1 nbsp This article about a location in Door County Wisconsin is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Sister Islands Wisconsin amp oldid 1141329283, wikipedia, wiki, book, books, library,
