The basal or lower deposits of the Manito Terrace consist of a combination of outwash sands and gravels from the Bloomington Moraine located to the east, and sands and gravels from the Kankakee torrent, which flowed along the path of the present Illinois River valley. These deposits are overlain by finer grained sediments consisting of windblown sands that form the sand dunes and the finer grained silts and clays that make up the loess deposits. The Manito Terrace may include deposits from the Shelbyville and Leroy moraines below those from the Bloomington Moraine and the Kankakee Torrent. However, the base of the Manito Terrace is not exposed in this area.

The best exposures of these deposits occur along the north-south roadcut of IL 29, and east of the railroad, along the north wall of the terrace adjacent to the east-west trending North Church St., 7000N. From this stop you can see the Shelbyville/Leroy Moraines to the east, the Mackinaw River, the Havana and Bath terraces to the north, and the Illinois River Valley to the west.