Premise: The River Ure is a river in North Yorkshire, England, approximately 74 mi long from its source to the point where it changes name to the River Ouse. It is the principal river of Wensleydale, which is the only one of the major Dales now named after a village rather than its river. The old name for the valley was Yoredale after the river that runs through it.
Hypothesis: Wensleydale is the only Dale named after a village rather than its river.