Stemilt Spires with Randy Lewis
34:08
Camas Meadows with Randy Lewis
56:49
Steamboat Rock Geology - GSA Field Trip
38:22
Peshastin Pinnacles with Randy Lewis
21:58
Treasure Hunting: Don Joaquin's Lost Gold
1:36:49
Embedded in Earth’s Story: Geology, Rocks, and Time with Marcia Bjornerud
36:55
Appalachian Geology: Surprising Implications
25:11
Expedition Red Top Lookout. Digging for huge agates, geodes and more.
35:46