what feature makes up part of the US border with canada

http://www.google.com/imgres?imgurl=http://www.divinglore.com/Genesis/USA/great%2520lakes%2520map.jpg&imgrefurl=http://www.divinglore.com/Genesis/USA/Great_Lakes_%26_Inland_Sites.htm&h=367&w=600&sz=50&tbnid=vfQKQQTtjFwJ::&tbnh=83&tbnw=135&prev=/images%3Fq%3DGreat%2BLakes%2Bmap&hl=en&sa=X&oi=image_result&resnum=1&ct=image&cd=1

what is the definition to tossil

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Wouldn't it be Niagra Falls???

Because they both share a part in the great natural mark...
I'm only an Australian girl so i'm not to sure....

Niagara Falls is one such feature. So are Lake of the Woods, Lake Ontario, Lake Superior, Waterton-Glacier International Park and the Blaine (WA) Peace Arch. There are many others.

The feature that makes up a significant part of the US border with Canada is the Great Lakes. The boundaries of four out of five Great Lakes (Superior, Huron, Erie, and Ontario) are shared between Canada and the United States. These lakes form a natural border that stretches for about 4,500 miles (7,200 kilometers) and serves as a key aspect of the border between the two countries.

To find this information, one can use various methods to determine the features that form part of the US-Canada border. Here's one way:

1. Start with a general internet search. Use search terms like "US-Canada border features" or "map of US-Canada border." This can provide you with immediate information on the features that make up the border.

2. Look for reliable sources such as government websites, academic resources, or geographic organizations. These sources often have detailed maps or descriptions of the border, including the features that form part of it.

3. Study the maps and descriptions carefully. In this case, you will find that the Great Lakes play a prominent role in defining the border between the US and Canada.

Remember to verify the information from multiple sources to ensure its accuracy and reliability.