| Border | % Correct |
|---|---|
| Nebraska-Wyoming | 96%
|
| New Mexico-Texas | 96%
|
| Arkansas-Oklahoma | 94%
|
| Colorado-Nebraska | 93%
|
| Illinois-Iowa | 91%
|
| Kansas-Oklahoma | 91%
|
| Kansas-Missouri | 90%
|
| Nebraska-South Dakota | 90%
|
| Colorado-Oklahoma | 89%
|
| Illinois-Wisconsin | 89%
|
| Kentucky-Tennessee | 83%
|
| Arkansas-Texas | 81%
|
| Kentucky-Ohio | 80%
|
| Georgia-Tennessee | 79%
|
| Ohio-West Virginia | 77%
|
| Alabama-Georgia | 76%
|
| Missouri-Nebraska | 74%
|
| Virginia-West Virginia | 66%
|
| Kentucky-West Virginia | 64%
|
| New Jersey-New York | 63%
|