Join us for a rock collecting trip to BMC Aggregates' Waterloo Sand Plant. We will be meeting at 8:45 A.M. at the meter lot in front of the West Entrance to Latham Hall. We will provide transportation to and from UNI. After our arrival to the Waterloo Sand Plant, we will have a brief introduction and go over some safety issues. Then everyone will be free to start collecting. We will depart the quarry at 11:30 A.M. Please bring a hard hat and eye protection if you have it. We will have extras available if you do not have any.