Kalkaska soil landscape in Michigan; photo from USDA: State Soils.
Official State Soil of Michigan
Michigan designated the Kalkaska soil series as the official state soil in 1990. All State Soils
Kalkaska soil occurs in both the upper and lower peninsulas of Michigan. it is used primarily for sugar maple and yellow birch hardwood timber, and sometimes for Christmas trees and specialty crops such as potatoes and strawberries (as well as for wildlife habitat). Kalkaska soil was formed in sandy deposits left by the glaciers that once covered Michigan.