Limestone
(chalk) outcrop of the Niobrara formation which is quarried for agricultural
purposes and forms part of "Turkey Ridge". (Location is 5 miles
south of Irene in Yankton county).
|
Limestone
(chalk) outcrop of the Niobrara formation which is quarried for agricultural
purposes and forms part of "Turkey Ridge". (Location is 5 miles
south of Irene in Yankton county).
|
|
|