Linda Sunby, a volunteer at the U.S. Army Corps of Engineers’ Fort Peck Interpretive Center and Museum in Fort Peck, Montana, helps a young visitor create a commemorative button, June 21, 2025, during the center’s 20th anniversary celebration. The Interpretive Center officially opened May 7, 2005, the same date as the start of the Montana Dinosaur Trail, a collaboration of 14 museums in Montana meant to boost paleontology tourism. The 20th anniversary event included all day activities where visitors could explore the center, speak with local wildlife and paleontology experts, play lawn games, make souvenir buttons, create bird feeders, read a book along a half-mile story trail, tour the local powerhouses and more. (U.S. Army photo by Lisa Crawford)