Cascade Mountains

I have just returned from a trip to the Cascade Mountains near the town of Liberty. The mountains in this area run between Cle Elum and Wenatchee. On the way home, I drove up a forest road near Liberty at Williams Creek. Many of the outcrops are sandstone. One sandstone outcrop had casts of seashells. The shells themselves were gone, but the shape of the shell was embedded in the sandstone.

The most interesting rock with a shell shape was a rock that had broken in two. On one half of the rock, you could see the shell shaped hole, and on the other half, you could see a bump shaped like the shell. But there was no shell! It was like a shell was buried in the sand and the shell material had somehow dissolved, leaving shell shapes behind.

Seashells in sand mean that these mountains had been seashore once upon a time...

She shall shape shells in the sea sand. (Of course, this doesn't make any sense, but it's fun to say!)