Runoff is medium or rapid. Permeability is moderate. The Myrtle soils are used mostly for cultivated crops such as corn, small grain, and meadow crops. Some areas are used for pasture. Native vegetation was probably mixed prairie grass and hardwood trees.
Known extent is small but is nearly moderate.
Stephenson County, Illinois, 1969. In minor areas, parent material II has been slightly influenced by glacial melt water and thus could be identified as glacial drift.