<P> In the United States, each state maintains its own system of state highways . This is a list of the longest state highways in each state . As of 2007, the longest state highway in the nation is Montana Highway 200, which is 706.624 miles (1,137.201 km) long . The shortest of the longest state highways is District of Columbia Route 295, which is only 4.29 miles (6.90 km) long . </P> <Table> Longest state highways by state <Tr> <Th> State </Th> <Th> Highway </Th> <Th> Miles </Th> <Th> km </Th> <Th> References </Th> </Tr> <Tr> <Th> Alabama </Th> <Td> State Route 3 </Td> <Td> 386.449 </Td> <Td> 621.929 </Td> <Td> </Td> </Tr> <Tr> <Th> Alaska </Th> <Td> Route 1 </Td> <Td> 545.92 </Td> <Td> 878.57 </Td> <Td> </Td> </Tr> <Tr> <Th> Arizona </Th> <Td> State Route 87 </Td> <Td> 272.66 </Td> <Td> 438.80 </Td> <Td> </Td> </Tr> <Tr> <Th> Arkansas </Th> <Td> Highway 7 </Td> <Td> 296.01 </Td> <Td> 476.38 </Td> <Td> </Td> </Tr> <Tr> <Th> California </Th> <Td> State Route 1 </Td> <Td> 655.84 </Td> <Td> 1,055.47 </Td> <Td> </Td> </Tr> <Tr> <Th> Colorado </Th> <Td> State Highway 14 </Td> <Td> 236.92 </Td> <Td> 381.29 </Td> <Td> </Td> </Tr> <Tr> <Th> Connecticut </Th> <Td> Route 15 </Td> <Td> 83.53 </Td> <Td> 134.43 </Td> <Td> </Td> </Tr> <Tr> <Th> Delaware </Th> <Td> Route 1 </Td> <Td> 103.02 </Td> <Td> 165.79 </Td> <Td> </Td> </Tr> <Tr> <Th> District of Columbia </Th> <Td> Route 295 </Td> <Td> 4.29 </Td> <Td> 6.90 </Td> <Td> </Td> </Tr> <Tr> <Th> Florida </Th> <Td> State Road 5 </Td> <Td> 536.724 </Td> <Td> 863.774 </Td> <Td> </Td> </Tr> <Tr> <Th> Georgia </Th> <Td> State Route 11 </Td> <Td> 374 </Td> <Td> 602 </Td> <Td> </Td> </Tr> <Tr> <Th> Hawaii </Th> <Td> Route 11 </Td> <Td> 122.3 </Td> <Td> 196.8 </Td> <Td> </Td> </Tr> <Tr> <Th> Idaho </Th> <Td> State Highway 75 </Td> <Td> 170.666 </Td> <Td> 274.660 </Td> <Td> </Td> </Tr> <Tr> <Th> Illinois </Th> <Td> Route 1 </Td> <Td> 336 </Td> <Td> 541 </Td> <Td> </Td> </Tr> <Tr> <Th> Indiana </Th> <Td> State Road 37 </Td> <Td> 229.4 </Td> <Td> 369.2 </Td> <Td> </Td> </Tr> <Tr> <Th> Iowa </Th> <Td> Highway 3 </Td> <Td> 326.163 </Td> <Td> 524.908 </Td> <Td> </Td> </Tr> <Tr> <Th> Kansas </Th> <Td> K - 4 </Td> <Td> 367 </Td> <Td> 591 </Td> <Td> </Td> </Tr> <Tr> <Th> Kentucky </Th> <Td> Route 80 </Td> <Td> 464.936 </Td> <Td> 748.242 </Td> <Td> </Td> </Tr> <Tr> <Th> Louisiana </Th> <Td> LA 1 </Td> <Td> 431.587 </Td> <Td> 694.572 </Td> <Td> </Td> </Tr> <Tr> <Th> Maine </Th> <Td> State Route 11 </Td> <Td> 401.2 </Td> <Td> 645.7 </Td> <Td> </Td> </Tr> <Tr> <Th> Maryland </Th> <Td> Route 2 </Td> <Td> 79.24 </Td> <Td> 127.52 </Td> <Td> </Td> </Tr> <Tr> <Th> Massachusetts </Th> <Td> Route 28 </Td> <Td> 151.93 </Td> <Td> 244.51 </Td> <Td> </Td> </Tr> <Tr> <Th> Michigan </Th> <Td> M - 28 </Td> <Td> 290.373 </Td> <Td> 467.310 </Td> <Td> </Td> </Tr> <Tr> <Th> Minnesota </Th> <Td> State Highway 1 </Td> <Td> 345.954 </Td> <Td> 556.759 </Td> <Td> </Td> </Tr> <Tr> <Th> Mississippi </Th> <Td> Highway 15 </Td> <Td> 328 </Td> <Td> 528 </Td> <Td> </Td> </Tr> <Tr> <Th> Missouri </Th> <Td> Route 5 </Td> <Td> 355 </Td> <Td> 571 </Td> <Td> </Td> </Tr> <Tr> <Th> Montana </Th> <Td> Highway 200 </Td> <Td> 706.624 </Td> <Td> 1,137.201 </Td> <Td> </Td> </Tr> <Tr> <Th> Nebraska </Th> <Td> Highway 92 </Td> <Td> 489.08 </Td> <Td> 787.10 </Td> <Td> </Td> </Tr> <Tr> <Th> Nevada </Th> <Td> State Route 318 </Td> <Td> 110.775 </Td> <Td> 178.275 </Td> <Td> </Td> </Tr> <Tr> <Th> New Hampshire </Th> <Td> Route 16 </Td> <Td> 149.75 </Td> <Td> 241.00 </Td> <Td> </Td> </Tr> <Tr> <Th> New Jersey </Th> <Td> Route 47 </Td> <Td> 75.19 </Td> <Td> 121.01 </Td> <Td> </Td> </Tr> <Tr> <Th> New Mexico </Th> <Td> State Road 120 </Td> <Td> 119.9 </Td> <Td> 193.0 </Td> <Td> </Td> </Tr> <Tr> <Th> New York </Th> <Td> State Route 17 </Td> <Td> 396.84 </Td> <Td> 638.65 </Td> <Td> </Td> </Tr> <Tr> <Th> North Carolina </Th> <Td> Highway 24 </Td> <Td> 284 </Td> <Td> 457 </Td> <Td> </Td> </Tr> <Tr> <Th> North Dakota </Th> <Td> Highway 200 </Td> <Td> 420 </Td> <Td> 680 </Td> <Td> </Td> </Tr> <Tr> <Th> Ohio </Th> <Td> State Route 7 </Td> <Td> 292.20 </Td> <Td> 470.25 </Td> <Td> </Td> </Tr> <Tr> <Th> Oklahoma </Th> <Td> State Highway 3 </Td> <Td> 615.0 </Td> <Td> 989.7 </Td> <Td> </Td> </Tr> <Tr> <Th> Oregon </Th> <Td> Route 140 </Td> <Td> 237.01 </Td> <Td> 381.43 </Td> <Td> </Td> </Tr> <Tr> <Th> Pennsylvania </Th> <Td> Route 18 </Td> <Td> 205 </Td> <Td> 330 </Td> <Td> </Td> </Tr> <Tr> <Th> Rhode Island </Th> <Td> Route 114 </Td> <Td> 45.70 </Td> <Td> 73.55 </Td> <Td> </Td> </Tr> <Tr> <Th> South Carolina </Th> <Td> Highway 9 </Td> <Td> 257 </Td> <Td> 414 </Td> <Td> </Td> </Tr> <Tr> <Th> South Dakota </Th> <Td> Highway 20 </Td> <Td> 432 </Td> <Td> 695 </Td> <Td> </Td> </Tr> <Tr> <Th> Tennessee </Th> <Td> State Route 1 </Td> <Td> 538.8 </Td> <Td> 867.1 </Td> <Td> </Td> </Tr> <Tr> <Th> Texas </Th> <Td> State Highway 16 </Td> <Td> 541.8 </Td> <Td> 871.9 </Td> <Td> </Td> </Tr> <Tr> <Th> Utah </Th> <Td> State Route 24 </Td> <Td> 160.243 </Td> <Td> 257.886 </Td> <Td> </Td> </Tr> <Tr> <Th> Vermont </Th> <Td> Route 100 </Td> <Td> 216.55 </Td> <Td> 348.50 </Td> <Td> </Td> </Tr> <Tr> <Th> Virginia </Th> <Td> State Route 40 </Td> <Td> 227.68 </Td> <Td> 366.42 </Td> <Td> </Td> </Tr> <Tr> <Th> Washington </Th> <Td> State Route 20 </Td> <Td> 436.13 </Td> <Td> 701.88 </Td> <Td> </Td> </Tr> <Tr> <Th> West Virginia </Th> <Td> Route 20 </Td> <Td> 262.1 </Td> <Td> 421.8 </Td> <Td> </Td> </Tr> <Tr> <Th> Wisconsin </Th> <Td> Highway 35 </Td> <Td> 412.15 </Td> <Td> 663.29 </Td> <Td> </Td> </Tr> <Tr> <Th> Wyoming </Th> <Td> Highway 789 </Td> <Td> 407.10 </Td> <Td> 655.16 </Td> <Td> </Td> </Tr> </Table> <Tr> <Th> State </Th> <Th> Highway </Th> <Th> Miles </Th> <Th> km </Th> <Th> References </Th> </Tr> <Tr> <Th> Alabama </Th> <Td> State Route 3 </Td> <Td> 386.449 </Td> <Td> 621.929 </Td> <Td> </Td> </Tr>

What is the longest state north to south