Mackinac Island is an island and resort area, covering 4.35 square miles (11.3 km2) in land area, in the U.S. state of Michigan. The name of the island in Odawa is Michilimackinac and "Mitchimakinak" in Ojibwemowin, meaning "Great Turtle". It is located in Lake Huron, at the eastern end of the Straits of Mackinac, between the state's Upper and Lower Peninsulas. The island was long home to an Odawa settlement and previous indigenous cultures before European colonization began in the 17th century. It was a strategic center of the fur trade around the Great Lakes. Based on a former trading post, Fort Mackinac was constructed on the island by the British during the American Revolutionary War. It was the site of two battles during the War of 1812 before the northern border was settled and the US gained this island in its territory.
Mackinac Island is a city in Mackinac County in the U.S. state of Michigan. As of the 2020 census, the city had a population of 583.
Kelleys Island is both a village in Erie County, Ohio, and the island which it fully occupies in Lake Erie. The island has a total area of 4.41 square miles (11.42 km2) and was formed by glacial action on limestone and dolomite.
Landforms are categorized by characteristic physical attributes such as their creating process, shape, elevation, slope, orientation, rock exposure, and soil type.
Fort Mackinac is a former British and American military outpost garrisoned from the late 18th century to the late 19th century in the city of Mackinac Island, Michigan, on Mackinac Island. The British built the fort during the American Revolutionary War to control the strategic Straits of Mackinac between Lake Michigan and Lake Huron, and by extension the fur trade on the Great Lakes. The British did not relinquish the fort until thirteen years after the end of the American Revolutionary War. Fort Mackinac later became the scene of two strategic battles for control of the Great Lakes during the War of 1812. During most of the 19th century, it served as an outpost of the United States Army. Closed in 1895, the fort has been adapted as a museum on the grounds of Mackinac Island State Park.
A hoodoo is a tall, thin spire of rock formed by erosion. Hoodoos typically consist of relatively soft rock topped by harder, less easily eroded stone that protects each column from the elements. They generally form within sedimentary rock and volcanic rock formations.
M-185 is a state trunkline highway in the U.S. state of Michigan that circles Mackinac Island, a popular tourist destination on the Lake Huron side of the Straits of Mackinac, along the island's shoreline. A narrow paved road of 8.004 miles (12.881 km), it offers scenic views of the straits that divide the Upper and the Lower peninsulas of Michigan and Lakes Huron and Michigan. It has no connection to any other Michigan state trunkline highways—as it is on an island—and is accessible only by passenger ferry. The City of Mackinac Island, which shares jurisdiction over the island with the Mackinac Island State Park Commission (MISPC), calls the highway Main Street within the built-up area on the island's southeast quadrant, and Lake Shore Road elsewhere. M-185 passes by several important sites within Mackinac Island State Park, including Fort Mackinac, Arch Rock, British Landing, and Devil's Kitchen. Lake Shore Road carries the highway next to the Lake Huron shoreline, running between the water's edge and woodlands outside the downtown area.
A cirque is an amphitheatre-like valley formed by glacial erosion. Alternative names for this landform are corrie and cwm. A cirque may also be a similarly shaped landform arising from fluvial erosion.
Mackinac Island State Park is a state park located on Mackinac Island in the U.S. state of Michigan. A Lake Huron island, it is near the Straits of Mackinac. The island park encompasses 1,800 acres (7.3 km2), which is approximately 80% of the island's total area. The park is also within the boundaries of the city of Mackinac Island and has permanent residents within its boundaries. M-185 circles the perimeter of the park as the only motorless highway in the state due to the island's ban of automobiles. The park is governed by the Michigan Department of Natural Resources and the Mackinac Island State Park Commission. On July 15, 2009, the park celebrated its 20 millionth visitor.
St. Joseph Island is in the northwestern part of Lake Huron. It is part of the Canadian province of Ontario. At 365 km2 (141 sq mi) in area, it is the sixth largest lake island in the world; the second largest island on Lake Huron, following Manitoulin Island; and the third largest of all the islands on the Great Lakes, trailing Manitoulin and Lake Superior's Isle Royale.
Lake Chicago was a prehistoric proglacial lake that is the ancestor of what is now known as Lake Michigan, one of North America's five Great Lakes. Formed about 13,000 years ago and fed by retreating glaciers, it drained southwest through the Chicago Outlet River.
Great Sugar Loaf at 501 metres (1,644 ft), is the 404th–highest peak in Ireland on the Arderin scale, however, being below 600 m it does not rank on the Vandeleur-Lynam or Hewitt scales. The mountain is in the far northeastern section of the Wicklow Mountains, in Ireland, and overlooks the village of Kilmacanogue. The profile of the mountain means it can be mistaken for a dormant volcano. It owes its distinctive shape, however, to the erosion-resistant metamorphosed deep-sea sedimentary deposit from which its quartzite composition was derived.
Arch Rock is a geologic formation on Mackinac Island in Michigan. It is a natural limestone arch formed during the Nipissing post-glacial period, a period of high Lake Huron levels following the end of the Wisconsin glaciation. To this day Arch Rock stands on the Lake Huron shoreline 146 feet (45 m) above the water.
Skull Cave is a small and shallow cave on the central heights of Mackinac Island in Michigan, United States. The cave was carved during the Algonquin post-glacial period by the waters of Lake Algonquin, a swollen meltwater ancestor of today's Lake Huron.
Castle Rock is a geological limestone stack and tourist attraction located 3 miles (5 km) north of St. Ignace, Michigan on Interstate 75 on the Upper Peninsula of the U.S. state of Michigan.
The geology of Monmouthshire in southeast Wales largely consists of a thick series of sedimentary rocks of different types originating in the Silurian, Devonian, Carboniferous, Triassic and Jurassic periods.
Nipissing Great Lakes was a prehistoric proglacial lake. Parts of the former lake are now Lake Superior, Lake Huron, Georgian Bay and Lake Michigan. It formed about 7,500 years before present (YBP). The lake occupied the depression left by the Labradorian Glacier. This body of water drained eastward from Georgian Bay to the Ottawa valley. This was a period of isostatic rebound raising the outlet over time, until it opened the outlet through the St. Clair valley, at one stage it had two stable outlets both draining to the east.
St. Anthony's Rock is a geological limestone sea stack and tourist attraction located in the central part of the city of St. Ignace, Michigan in Michigan's Upper Peninsula.
