Field Trip to the Ice Dam Site

A field trip to Sandpoint ID to view geologic features related to the ice dam(s) that blocked the Clark Fork River causing the formation of Glacial Lake Missoula is planned for April 17-19th by the Glacial Lake Missoula chapter.  Tony Lewis of the Coeur du Deluge Chapter will narrate a day long bus trip on April 18.  A car caravan will visit Farragut State Park and other downstream sites the next day.   Registration is limited and is being handled by the Montana Natural History Center at https://events.humanitix.com/ice-dam-field-trip Discounted registration is available at Schweitzer Resort until March 18th.  For further information check out these details or contact Sherry McLauchlan, 406-207-7760.

New Interpretations of Old Strandlines

Montana Natural History Center 120 Hickory Street, Missoula, MT

It’s that time of the year! Time to contemplate ice ages and glacial lakes. Time for the Glacial Lake Missoula Chapter of the Ice Age Floods Institute’s Cabin Fever Lecture!  Warm up your curiosity about those iconic strandlines we can see from town with a lecture from renowned geologist James W. Sears. New “LiDAR ” mapping techniques may imply that the famous Lake Missoula strandlines on Mount Sentinel and Mount Jumbo record only one draining of the ice-age lake. The draining coincided with massive erosion at the bottom of the lake, but passive lowering of lake level at the top, marked by short-term strandlines cut a few inches into thin colluvial soil on the mountainsides. About the Instructor: Dr. James W. Sears received his PhD from Queen’s University, Canada, in 1979, and has taught at the University of Montana since 1982. This is a live event that will not be recorded or streamed.