Reston, VA was founded 47 years ago and Europeans first settled in the Nationa lcamptal region 403 years ago. This human footprint can't compare to the dynamic Earth history of this region, extending back as early as 1,180 million years ago and continuing today. For over 120 years, USGS has studied and mapped the region revealing a rich and diverse geologic past. Learn the story of the formation and destruction of continents and oceans, the eruptions of ancient volcanoes, climatic and sea level changes, as well as the hazards of modern landslides, earthquakes and karst. Discover the region's fossils, dinosaur tracks and gold, perhaps in your own backyard! Bring your favorite local rocks and minerals and fossils for identification after the talk.
Follow this event live on Twitter @USGSLive