Typical lichens found along the Colombia River in Eastern Washington. These particular ones are in Big Flat Habitat Management Unit near Pasco, WA. © 2007 Kenneth R. Sheide

A small stream meanders through the forest in Mount Rainier National Park, WA. © 2007 Kenneth R. Sheide

Moss-covered trees in Mount Rainier National Park, WA. © 2007 Kenneth R. Sheide