The Great Lakes are big lakes.
The Great Lakes region is in North America.
Large rocks make a long ridge here. This ridge is called the Niagara Escarpment. 
Water flows through the area in many ways. Rivers connect the lakes to each other. This water helps people move things.
Big ships carry goods on the water. 
Many different groups of people lived here long ago. Now, many people live in cities near the lakes. It is a very busy and special place.
The Great Lakes region is in North America. 
A huge ridge of rock is a main part of the land. We call this the Niagara Escarpment. 
Many groups of people lived here long ago. The Haudenosaunee lived south of Lake Ontario. Other nations lived around the other lakes. Later, people from Europe came to the area. They wanted to trade furs. Today, many people live in big cities near the water. 
The Great Lakes region is a special part of North America. 
Much of the land is shaped by rocks and water. A huge feature is the Niagara Escarpment. 

Long ago, many different nations lived on these lands. The Paleo-Indian cultures were there very early. Later, the Haudenosaunee lived south of Lake Ontario. They were a group of nations like the Mohawk and Seneca. Other groups, like the Anishinaabewaki, lived near Lakes Huron, Michigan, and Superior. 

The way the water moves is very important. The Great Lakes are part of a huge water system. The lakes receive water from many rivers. For example, the St. Clair River connects Lake Huron and Lake Erie. The Detroit River also helps move water. 

Today, the region is home to many big cities. You can see bright lights in cities like Cleveland or Detroit. 



The Great Lakes region is a significant binational area in Northern America.
The geography is defined by the Great Lakes Basin. This is a narrow watershed that encompasses the lakes. It is bounded by other major watersheds. To the north, it is bounded by the Hudson Bay. To the west, it is bounded by the Mississippi. To the east and south, it is bounded by the Ohio. The rivers of St. Lawrence, Richelieu, Hudson, Mohawk, and Susquehanna form an arc to the east. The region is distinct from the Basin itself. The region is defined by specific political entities. These are the states and province that border one or more of the lakes.
Geology has shaped the landscape through Palaeozoic strata. These are thick layers of rock. These layers decline gently southward from the Laurentian Highlands in eastern Canada. The visible land was once part of a primeval continent. Much of the continent was buried under Palaeozoic seas. The visible part was the last to sink under these advancing seas. This area can be viewed as an ancient coastal plain. Weaker rock layers have worn down into lowlands. These lowlands sit between belts of more resistant strata. These resistant layers rise up to form uplands.
A major feature is the Niagara Escarpment. 
The arrangement of the lakes matches these geological lowlands. The lakes sit in depressions created by the erosion of weaker strata. Lake Ontario, Georgian Bay, and Green Bay occupy depressions on the inner side of the escarpment. Lake Erie, Lake Huron, and Lake Michigan sit in depressions on the outer side. Glacial erosion helped form these lake basins. Glacial drift obstructed the normal outlet valleys. Crustal warping also played a role. Lake Superior is unique among the lakes. Most of its basin occupies a depression in the upland area. This is independent of the Palaeozoic strata overlap. The western half of its basin occupies a trough of synclinal structure.
Water flows through a complex system of connections. The three middle lakes are Lake Michigan, Lake Huron, and Lake Erie. These three stand at practically the same level. Lake Michigan and Lake Huron are connected by the Straits of Mackinac. The Mackinac Bridge spans these straits. Lake Huron and Lake Erie are connected by the St. Clair River and the Detroit River. The small Lake St. Clair sits between them. 
Human history in the region is very old. Paleo-Indian cultures were present from about 12,000 BCE to 8,000 BCE. Before European arrival, many nations inhabited the land. The Haudenosaunee lived south of Lake Ontario. This confederacy included the Mohawk, Oneida, Onondaga, Cayuga, and Seneca. The Anishinaabewaki lived around Lakes Huron, Michigan, and Superior. 
Today, the region is a hub of activity and industry. Large cities like Cleveland and Detroit show this clearly. 



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