Michael J. Simms writes: Watts, McKerrow and Fielding (2000) have made an interesting suggestion, that much of the present topography of the Cotswolds and the clay vales to the west has arisen through Late Pleistocene (post‐450 ka) uplift in the Midlands, but the evidence on which it is based is extremely weak. The basic premise on which their hypothesis is founded is that the Northern Drift Group in Oxfordshire originated from outcrops of Triassic conglomerates in the Midlands, with these two regions once being linked by a continuous river along which the clasts were transported. They also contend that such...

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