Kartchner Caverns, near Benson, AZ.
Soda Straws and Stalagmites.
So many magnificent stalagmites, stalactites, helictites, soda straws, bacon strip curtains, egg yoke stalagmites, columns and other calcite formations in the "Big Room".
A fun day with Fred and Hilda.
(Missing picture: Bill and Fred caving in the visitors center...a must see experience.)