Sub-subsection VI.1.3 also includes areas of icecontact topography. Kettle lakes, kames, eskers, and segments of outwash channel are the predominant features of the icecontact areas. Most of the small segments of end moraine surrounded by outwash have slopes predominantly in the 0 to 6 percent and 6 to 12 percent classes. The large blocks of end moraine at the margins of the sub-subsection commonly have steeper slopes in the 12 to 25 percent or 25 to 40 percent classes. Many kettle lakes and ponds on the pitted outwash, end moraines, and ice-contact topography.
Extensive wetlands surround many of the lakes and occupy entire ice-block depressions.
Both marl and peat deposits were extensively mined in the past. The headwaters of many major rivers originate in the extensive wetlands of the sub-subsection. These include the Huron, Grand, Kalamazoo, and St. Joseph Rivers. The soils of the moraines are typically well and excessively well drained. Drainage conditions on the outwash are more variable, ranging from excessively well drained to very poorly drained.