Seal Rock is located on the Oregon coast about 10 miles South of Newport.
You will see examples of columnar basalt. The vertical joints occur when the basalt cools.
	This view shows a basalt "sill" that was created when lava flowed between layers of sedimentary rock. The sill is now visible due to  erosion by wave action.
The intertidal area at Seal Rock contains a wide diversity of organisms. Shown here are green sea anemones and Ulva, a type of seaweed.
	Shown is an acorn barnacle colony, with whelks and small mussels.
Small aggregating anemones and acorn barnacles have colonized these basalt rocks.
	Note the "black katy" chiton near the center of this picture. Eight interlocking plates give the chiton its structure.

      Brought to you by Jody, Kim, Diane, and Steve