Slightly further upstream, there is a till known as Wisconsinan Till, which is underlain with glacial lake clays in some reaches.
12.
In the stream's upper reaches, alluvium is present as well and some of the Wisconsinan Till is underlain by glacial lake clays.
13.
One is on the east side of the lake, at 1650 Lake Clay Drive, and the other is on the west side, at 1300 Lake Clay Drive.
14.
One is on the east side of the lake, at 1650 Lake Clay Drive, and the other is on the west side, at 1300 Lake Clay Drive.
15.
Many of the soils of the immediate Laguna area are classified as Clear Lake clay; these soils are associated with regions of poor drainage, and are underlain by alluvium and sedimentary rock.
16.
Further upstream, in the middle and upper reaches, there is a till known as Wisconsinan Till, which is underlain by glacial lake clays in the vicinity of the stream's middle reaches.
17.
"' Ventifact Knobs "'( ) are minor knobs, 3 to 6 m high, composed of lake clay covered by glacial drift . The glacial drift has cobbles that are well polished by the wind and cut into ventifacts.
18.
The Lower Shiawassee is bordered by a low-relief till plain overlain by relatively impermeable and are poorly-drained fine-grained glacial lake clays and relict beach deposits that were deposited over a several thousand-year period when glacial Lake Saginaw covered much of the area, after the most recent retreat of the ice at the end of the Wisconsin glaciation.
