More pictures by Leah of her class

Annaliese examines the fossils in the Decorah Fm at the Highway 56 stop.

Chelsea and Jill look at grain size and rounding in the St. Peter sandstone.

And again... on the St. Peter.

Chris, Lyndsey and Chloe sketching the big picture.

Danielle taking notes on the St. Peter.

Ezra and Stephanie identify bedding in the St. Peter.

Bess, Annaliese, Dave and Isaac on the Decorah.

The Decorah is soft enough to dig out with a shovel.

Lyndsey taking careful notes.

Win and Shelby discuss the Decorah.