Another brick-yard, opened in 1879, is owned by Adam Brower, one mile west of Kingston, on the north side of the river. This clay is yellowish gray, appearing like that used by Mr. Ames. In both these clay-deposits, small flattened concretions of carbonate of lime occur in considerable numbers in certain horizontal layers three or four inches thick, while the rest of the clay contains scarcely any. The clay of Kingston needs one-eighth to one-fifth its own amount of sand. Mr. Brower’s well, before described, is situated about four rods west from where the clay used for bricks is dug. This well and brickyard are on a gentle swell, which was originally covered by white and bur oaks, elevated 20 or 25 feet above the adjoining land thirty rods south, which is the alluvial gravel and sand of the valley of the North branch of the Crow river. The deposition of this clay, as also of the clay worked for brick-making at Nest lake in Kandiyohi county, seems to have taken place in basins melted from the departing ice of the glacial period, the yet undissolved portions of the ice-sheet being walls on each side by which this sediment was kept from being spread over the adjoining lower land. (A Report on the Geological and Natural History Survey of Minnesota, 1882-1885, Volume II, N. H. Winchell and Warren Upham, Pioneer Press Company, St. Paul, Minnesota, 1888, Page 241)
Near Litchfield and Kingston, brick yards operated for years on some laminated clays apparently formed in basins in the ice. Limey concretions occur in certain layers. The gray drift north and west of Litchfield consists largely of clay, but is somewhat pebbly. (Clays and Shales of Minnesota, Frank F. Grout and E. K. Soper, The University of Minnesota, Minneapolis, Minnesota, 1914, Page 129)