<Tr> <Th> Max. length </Th> <Td> 7.5 miles (12.1 km) </Td> </Tr> <Tr> <Th> Max . width </Th> <Td> 1 mile (1.6 km) </Td> </Tr> <Tr> <Th> Surface area </Th> <Td> 2,190 acres (8.9 km) </Td> </Tr> <Tr> <Th> Average depth </Th> <Td> 70 feet (21 m) </Td> </Tr>

How many acres is lake shannon fenton mi