The Washington State Mineral Council is sponsoring a field trip on July 20, 2024:
Location: Sweetwater
Time: 11:00 AM
Meet up at: Mansford Grange Hall, Darrington, WA (Darrington Rock & Gem Club Show)
Host: Darrington Rock & Gem Club
Material: travertine (A limestone consisting of a massive usually layered calcium carbonate (such as aragonite or calcite) formed by deposition from spring waters, especially from hot springs. Compare with tufa.) 