Border Dispute Between Two U.S. States? In Today's Day and Age?

Current border disputes:

China vs. India
India vs. Pakistan
Ethiopia vs. Eritrea
Ethiopia vs. Somalia
Israel vs. Palestine
Chile vs. Argentina
Peru vs. Chile
Bolivia vs. Chile
Canada vs. United States (click here for list)
North Korea vs. South Korea vs. Japan vs. Russia (Sea of Japan)
Greece vs. Turkey
Canada vs. Norway vs. Russia vs. United States (North Pole)
China vs. Taiwan
Tennessee vs. Georgia (WHAT!!)

It's true. Georgia and Tennessee decided on their common border in 1818; but there was apparently a mistake made in surveying the border area, and it's one mile off. Georgia wishes to expand the border one mile north to correct the mistake, which would also give it access to the waters of the Tennessee River.

State legislators in both states have engaged in saber rattling over this dispute. The matter will eventually be decided by the U.S. Supreme Court, which has jurisdiction in a case like this. The last time the Court decided in a case, it was to settle the border between Maine and New Hampshire in 2002 over where the state line fell in the area of the Piscataqua River. Maine's interpretation was deemed to be correct.

In addition to Tennessee vs. Georgia, there are also border disputes between New Jersey and Delaware, Pennsylvania and Delaware (with Delaware considering a symbolic bill to call out the National Guard to safeguard their claims) and a couple of others, including an ongoing dispute between Kansas and Colorado over the Arkansas River. Most of these cases are expected to be resolved by the Supreme Court in the 2007-2008 session.

It's amazing that these disputes weren't settled decades ago. Amazing!