Tim Henderson
U.S. National Park Service, Washington, DC
Activity
2025
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Meriwether Lewis, William Clark, and the Corps of (Geologic) Discovery: Geoheritage Sites along Missouri National Recreational River, Nebraska–South Dakota, U.S.A.
134 Crossing Boundaries: Histories of GeoheritageMonday, 20 October 20251:30 PM - 5:30 PMHBGCC, 302A