On July 21 through 24, about 30 GSM members participated in a four-day tour of sites and facilities on the Mesabi Iron Range, including the Minnesota Discovery Center, the Minnesota DNR Drill Core Library in Hibbing, Hill Annex Mine State Park (including a description of current fossil research being done by GSM member John Westgaard), and Soudan Underground Mine State Park. Participants learned a lot about the geology, history, and technology of mining in Minnesota. See reports by Deborah Naffziger in the November 2016 and February 2017 Newsletters. Field trip photos:

-Day 1: Minnesota Discovery Center;

-Day 2: Hibbing; Hull-Rust-Mahoning Open Pit Mine; Drill Core Library;

-Day 3: Hill Annex Mine State Park;

-Day 4: Soudan Underground Mine and Physics Lab; Banded Iron Outcrop.