I was invited to give this presentation by my watershed group, Friends of the North Fork Shenandoah River.  In “A Sedimental Journey: How Historic Deforestation Degrades Waterways Today,” I use a forensics approach to find clues to history – and its long-term consequences – in our forests and streams today.  The word “Legacy” usually means something good received from the past, or created for the future.  “Legacy sediments” literally muddy this concept and are revolutionizing our understanding of truly healthy streams.