Dr. Dave Love: New Mexico Tech: Join us for a fun road trip to look at rocks and their geologic histories in the area of drainage divides near the top of the continent. Stream headwaters drain in three directions—Wind River to the Gulf of Mexico, Green River to the Gulf of California, and Gros Ventre River to the Pacific Ocean. Along the route participants will see some of the oldest rocks in North America and younger rocks from more recent mountain-building episodes. Gold-bearing gravels along the way may provide an opportunity to pan for tiny flakes of gold. The returning loop of the trek provides spectacular panoramic views of the volcanic mountains and Wind River Valley to the north and west.