Lichens are an important part of the prairie ecosystem at Pipestone National Monument. These plant/fungi organisms slowly break down rocks to mineral components to create a primitive soil over long periods of time.
It takes a century for Lichens to spread an inch or less on rocks.
Did You Know?
Archeological evidence indicates that the quarrying of pipestone has occurred for 3,000 years at Pipestone National Monument. The important traditions of pipestone quarrying and pipemaking continue today. More...