Lake Ontario is the farthest east of the five Great lakes, but borders New York, not Pennsylvania. The lake that forms part of Pennsylvania's northwest border is Lake Erie.
Lake Ontario is the Great Lake that is the farthest west. The other Great Lakes are Lake Michigan, Lake Superior, Lake Erie, and Lake Huron.
To answer this question I went to wikipedia and searched for great lakes and looke at the picture and could see Lake Superior is farthest west. I'm sure you could do this too. http://en.wikipedia.org/wiki/Great_Lakes
NO there lakes not rivers
Yes, those are the five Great Lakes.
There are seven continents in the world and there are five great lakes in North America,
Wisconsin, Illinois, Indiana, Michigan, and Ohio are the five Great Lake states, and are arranged around the lakes.
the five great lakes are called great because they are so big and they take up more of the united states
The Great Lakes
The Great Lakes
the five great lakes.
The Great Lakes.