MISSOURI VALLEY, Iowa (AP) — The DeSoto National Wildlife Refuge in Iowa will offer a chance to learn more about the Civil War-era steamboat that sank nearby in the Missouri River. On Sunday morning at 11, artifacts recovered from the Bertrand will be on display, and an expert will discuss them. The ship’s cargo included an assortment of items that settlers would have needed to survive on the frontier. The Bertrand sank on April 1, 1865.