A 65-year-old fence sparked a fight over 5.13 acres in Kansas; what happened and why did the neighbours go to court?

The fence reportedly did not follow the actual legal property boundary. Around 5.13 acres of land, forming a triangular patch, lay between the existing fence and the legally recognised boundary. The terrain had a bog, a creek, terraces, a steep 20-30-foot cliff and large trees. The fence was built along a more convenient route rather than the exact legal property boundary.