Louisiana Highway 19 (LA 19) is a state highway located in southeastern Louisiana, it runs in a north–south direction from U.S. Highway 61 (US 61) in Baton Rouge, the capital of the U.S. state of Louisiana, and its second-largest city, to the Mississippi state line north of which city?
Baton Rouge, Louisiana Baton Rouge ( ; French for "Red Stick", French: Bâton-Rouge ] ) is the capital of the U.S. state of Louisiana and its second-largest city. It forms the parish seat of East Baton Rouge Parish and is located on the eastern bank of the Mississippi River.
Louisiana meridian The Louisiana meridian, in longitude 92° 24′ 15″ west of Greenwich, extends from the Gulf of Mexico to the north boundary of Louisiana, and with the baseline through the initial point conforming to the parallel of 31° north latitude, governs all the surveys in the state west of the Mississippi River.