Family Day At The Museum

So that's how they did it, Visitors at the Prehistoric Museum's Family Day Saturday get a look at how ancient Native Americans managed to drill holes in rocks. Dale Harber of the Manti-LaSal National Forest demonstrates how a simple tool of wood, stone and leather can rotate a drill bit. (The real tool would have used a sliver of stone instead of a nail.) More photos of the day's activities are on page 12A.

The mano and metate used for grinding corn is a far cry from modern kitchen utensils.

Visitors get to chat with the museum's John Bird and observe as he works on a recent discovery: a giant, four-foot diameter clam that was living with lots of neighbors on what was once a sea bed near Green River.