<Table> Northern Pacific Railway <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> The Northern Pacific Railway system map </Td> </Tr> <Tr> <Td_colspan="2"> The former Northern Pacific Office Building in Tacoma, Washington . </Td> </Tr> <Tr> <Th> Reporting mark </Th> <Td> NP </Td> </Tr> <Tr> <Th> Locale </Th> <Td> Ashland, Wisconsin and Saint Paul, Minnesota to Seattle, Washington, Tacoma, Washington, and Portland, Oregon </Td> </Tr> <Tr> <Th> Dates of operation </Th> <Td> 1864--1970 </Td> </Tr> <Tr> <Th> Successor </Th> <Td> Burlington Northern (later BNSF) </Td> </Tr> <Tr> <Th> Track gauge </Th> <Td> 4 ft 8 ⁄ in (1,435 mm) standard gauge </Td> </Tr> <Tr> <Th> Headquarters </Th> <Td> Saint Paul, Minnesota </Td> </Tr> </Table> <Tr> <Td_colspan="2"> The Northern Pacific Railway system map </Td> </Tr>

Where does the northern pacific railroad start and end
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