The clouds of fugitive dust from the dirt roads were blowing back across his windshield, obscuring his vision. He almost gave up his search, but then sighted the object of his quest, an old clay tile silo. A wide smile crossed his face. Although alone, Peter Rydell yelled out, “Yes, that’s it. After all these years, I’ve found it again.” He recalled the silo being off US Route 1, south of Solon, Iowa, but only accessible by backcountry roads. While...