A misﬁt stream is one that is out of proportion to its valley. The reference is usually to a stream signiﬁcantly smaller than the valley might accommodate. One place that exempliﬁes this term better than any other is Paradox Valley, near the settlement of Bedrock in southwestern Colorado, where the Dolores River ﬂows across rather than along the valley. This is David Lavender’s impression of this stretch of the Dolores, in One Man’s West: “It pierces the bastion wall in a titanic, crimson-cliffed canyon of singular beauty, spills sluggishly over the table-ﬂat valley ﬂoor in a series of horseshoe coils, gathers itself, and plunges out the northern side in another echoing gorge.” A less dramatic misﬁt stream is found in nearby Unaweep Canyon. Misﬁt streams may have lost water to climatic changes, to the capture of their water source by another stream, or to the seepage of water down into the ﬂoodplain. They are sometimes found in larger meandering valleys, where they carve new smaller meanders into the alluvium deposits on the valley ﬂoor. And occasionally misﬁt streams come about because the valley itself was enlarged during glaciation, though the right term here is usually underﬁt stream. Valleys cut by glacial meltwaters but whose stream channels today gather only the runoff from rainfall are common in the middle United States, but these disproportionate watercourses are also properly underﬁt streams.