<Li> I - 84 / I - 380 near Scranton, PA </Li> <Li> I - 90 / New York Thruway in Syracuse, NY </Li> <Tr> <Th> North end </Th> <Td> Highway 137 to Highway 401 on Thousand Islands Bridge at Wellesley Island, NY / Hill Island, ON </Td> </Tr> <Tr> <Th_colspan="2"> Location </Th> </Tr>

What is the highest elevation on interstate 81