Still Lifes

They're Lichen It

Foliose and crustose lichens colonizing 1.2 billion-year old columnar basalt serving as a natural breakwater at Grand Marais, Minnesota.

Many lichens along the north shore of Lake Superior's bedrock shoreline are Arctic disjuncts, but can eke out a living among lake's cool climate where protected from wave action and trampling by people.

AbstractBasaltCook CountyGrand MaraisGrand Marais HarborMinnesotacolumnar basaltfoliose lichensgeologyigneous Rocklichens