What are the four southernmost states that border Nebraska?

Nebraska  is a state that lies in both the Great Plains and the Midwestern United States. The state is bordered by South Dakota to the north, Iowa to the east and Missouri to the southeast, both across the Missouri River, Kansas to the south, Colorado to the southwest and Wyoming to the west. Its area is just over 77,220 sq mi (200,000 km2) with almost 1.9 million people. Its state capital is Lincoln. Its largest city is Omaha, which is on the Missouri River.

Nebraska is split into two time zones, with the state's eastern half observing Central Time and the western half observing Mountain Time. Three rivers cross the state from west to east. The Platte River, formed by the confluence of the North Platte and the South Platte, runs through the state's central portion, the Niobrara River flows through the northern part, and the Republican River runs across the southern part.

Panorama Point at 5,424 feet (1,653 m), is Nebraska's highest point; though despite its name and elevation, it is a relatively low rise near the Colorado and Wyoming borders. A past Nebraska tourism slogan was "Where the West Begins"; locations given for the beginning of the "West" include the Missouri River, the intersection of 13th and O Streets in Lincoln (where it is marked by a red brick star), the 100th meridian, and Chimney Rock.