The Mississippi River, Louisiana or Arkansas depending on where you are at and if you are in the deep south a part of the western and southern borders of the State passes over the boot toe of Louisiana before you reach the Mississippi River. Mississippi shares both a western and a southern border with Louisiana and a southern border with the Gulf of Mexico and with Louisiana.
The Mississippi River forms Arkansas's eastern border. Tennessee and Mississippi border Arkansas on the east. Lake Chicot is located in Arkansas near the Arkansas-Mississippi border.
The Mississippi River forms the Western border of the States of Illinois, Tennessee, and Mississippi. The Mississippi River forms the Eastern border of the States of Iowa, Missouri, Arkansas, and Louisiana.
The Mississippi River forms most of Arkansas's eastern border. Tennessee and Mississippi border Arkansas to the east across the Mississippi River.
The Mississippi River for both!
The Mississippi River forms most of Arkansas's eastern border.
which river runs across the state of Arkansas
The Mississippi River
the Mississippi
Mississippi River
What
Missouri
Tennessee and Mississippi ended at the Mississippi River, so Arkansas started from there.