View of the Big Lost River and high peaks of the Lost River Range from ISU Geosciences’ Lost River Field Station near Mackay, Idaho.

2021 Call for Field Trip Logs, Papers, and Conference Volunteers

Join us for the 2021 TRGS Field Conference at Idaho State University (ISU) Geosciences’ Lost River Field Station near Mackay, Idaho ( We welcome proposals for field trips, posters, and papers about any aspect of the geology in and around the Lost River Valley. Field guides, abstracts, and papers will be published in Northwest Geology, the annual publication of TRGS. Please contact Dave Pearson ( by March 15, 2021 with your proposed titles. Submission guidelines are posted at All manuscripts and road logs must be received by April 15, 2021.

The Lost River Field Station, located in the Big Lost River Valley, is nestled at the foot of Borah Peak, the highest mountain peak in Idaho. The region is home to spectacular landscapes and a tremendous diversity of geology: folded and faulted sedimentary rocks, ductilely deformed Archean and Proterozoic metamorphic and igneous rocks in the Pioneer metamorphic core complex, fossiliferous sedimentary
rocks, ancient and active faults, Cenozoic volcanic and plutonic rocks and related mineralization, recent
alpine glaciation, and Quaternary geology. Want to help with the conference? Contact Paul Link at

Tentative plan for TRGS 2021 at ISU Geosciences’ Lost River Field Station
Host: ISU Geosciences Department
Thursday to Sunday July 29 to Aug. 1, 2021


General chair: Paul Link
Food and Logistics Chair: Ryan Anderson; Brian Mahoney
Editor Northwest Geology and field guide (Manuscripts due April 15, 2021): Dave Pearson
Thurs night TRGS Board Meeting


Friday morning presentations (tentative)
Donna Delparte and Ryan Anderson—Field Camp at LRFS, Drone Footage and Action Shots
Dave Pearson—Synthesis of east-central Idaho fold thrust belt research.
Brian Mahoney—New DZ studies of Belt Supergroup
Emily Kleber and Zach Lifton—Earthquake studies in N Utah and SE Idaho
George Grader—Devonian facies?


Tentative Field trips: 
Friday trips half-day
Friday--Paul Link and Brad Burton—Traverse along the Trail Creek Road: The Rock Roll Canyon Quad
Friday--Mackay Gold-Copper Mine exploration—Keian Moran, Ryan McDermott, Jake Milton
Friday—Challis Volcanic Group near Challis—Dave Stewart, Jesse Mosolf, and Colleen Elliott?
Friday—Geophysical transect Lost River Valley and the Lost River fault from the Thousand Springs segment
down to the plain—Paul Wetmore et al.


Saturday—Glenn Thackray—Glaciation and the Big Lost River Flood
Saturday—Jim Vogl and Rory McFadden—Walking into the Pioneer core up the N. Fork of Kane Creek
Saturday—Chase Porter and Dave Pearson—Mesozoic thrusting and folding in central and east-central Idaho


Sunday Liz Petrie and Brad Burton—The Pioneer thrust and carbon partitioning
Sunday Shannon Kobs-Nawotniak—Craters of the Moon
Sunday Dave Pearson et al.—Leaton Gulch and Bayhorse
Sunday- Zach Lifton et al.—Borah Peak fault scarp
Sunday-Dave Stewart—Challis Volcanic Section, 1500 foot climb up Jim Canyon, N. Fork, Big Lost River

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