Full Title: FT26CN416. Deposition, magmatism, metamorphism, and deformation of the Proterozoic Poudre Basin in the northern Colorado Front Range.
Price: US$100 for non-members; US$85 for professional members; US$50 for student members; US$70 for early career professional members
Leader(s): Graham Baird; Kevin Mahan; Timothy Grover
Endorser(s): GSA Structural Geology and Tectonics Division, GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division, GSA Geochronology Division
Industry Track(s): Economic Geology
CEUs: 1.20
Date(s): Thu., 15 Oct. 2026
Departing Location: Colorado Convention Center, Denver, Colorado, USA
Start Time: 7:30 a.m.
End Time: 7:30 p.m.
Description: Join us on a day-long field trip to explore the Proterozoic igneous and metamorphic rocks of the Poudre Canyon and Big Thompson Canyon areas in the northern Colorado Front Range.
We will examine a wide variety of lithologies, including quartzite, schist, amphibolite, and gneiss, as well as subduction-related plutons and enigmatic beryl-bearing felsic pegmatites. Geochemical, geochronologic, and metamorphic petrology datasets will be presented to connect these rocks to various tectonic models and to explore their implications for crustal generation and Proterozoic tectonics in the region. The cost of the trip includes round-trip transportation from the convention center and lunch.
Considerations: There are a range of destination types. Some will be outcrops 10s of meters from the vehicles; some will require hiking along a busy highway of about 100 meters total. At a few stops, to see the best outcrops, hiking over rough ground for 400 meters total is necessary; however, alternative outcrops within 10s of meters of the vehicles can be shown. Probably only the outcrops within 10s of meters of the parked vehicles will be accessible. This will be about 50% of the destinations.
Cost includes ground transportation, lunch, snacks, and water.
By purchasing this item, you are buying a seat for an in-person geological field trip. This field trip is in conjunction with GSA Connects 2026. Learn more here.
For member type discounts please contact fieldtrip@geosociety.org.
Students and Early Career Professionals can apply for funding here.
Field Trips offer Continuing Education Units (CEUs). One CEU equals 10 hours of participation in an organized continuing education experience under responsible sponsorship, capable direction, and qualified instruction.
Please review these Field Safety Documents. You will be contacted to provide your consent to these forms after purchasing a field trip.
For additional information, please contact fieldtrip@geosociety.org.
Product Code: FT26CN416
Product Category: FTRIP
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