The loess covers both the watersheds and the valleys.
This wide-spreading loess area was formed partly of wind-blown sand and partly of detritus from the mountains.
During this period, wind-blown deposits, such as the loess, began to make their appearance.
Along the river bluffs there is a silicious deposit called loess, which is well suited to the cultivation of fruits and vegetables.
The loess soil, chiefly a mixture of porous clay and carbonate of lime, forms the bluffs that border the bottom lands of the Missouri.
The loess is reddish-brown, buff or grey according to the varying proportions of iron oxide.
There are four kinds of soil in Northern Europe: glacial till, alluvial, loess and geest.
Loess is widespread in the Mississippi River basin, especially along the larger streams which flowed from the ice.
These Pleistocene deposits include bouldery drift, loess, terrace deposits and alluvium.
The loess is used with clay for the production of brick.
The loess stretches out over terraces at some distance from the mountains.
Nine-tenths of the rainfall is absorbed by the loess and sandy soils, with only one-tenth being "run-off."
Loess, often thin and always containing little humus, also covers large areas on the high, semi-arid plains in the western part of the state.
Its southern foothills are covered with loess, making them fertile valleys.