Drumhollistan - thick sequences of till left by the last ice sheet moving over the north coast
Two main groups of landforms are recognised that result from deposition by ice:
Examples from both
groups of landforms are represented in Caithness. These landforms may be also be
classified in terms of their position relative to the former glacier, as
subglacial, englacial, supraglacial, marginal and proglacial landforms.