Crossing(wording) the Forested Landscape

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Across
  1. 1. What farmers and glaciers have in common
  2. 3. Bog maker, with leatherleaf
  3. 5. What the glacier dropped off
  4. 9. A very sweet forest
  5. 10. Alpine plant, recently rediscovered
  6. 14. The messiest log cabin, for a beaver
  7. 15. Topographic growth spurt
  8. 16. One W in WWW
  9. 17. Softserve, Vermont-style
Down
  1. 2. Ancient ocean named for the father of Prometheus
  2. 4. Jeff Hughes' big lesson, often in chicken form
  3. 6. Weathered cliff bits
  4. 7. The anniversary for the Field Naturalist Program
  5. 8. Winter sheet for north america, 20,000 years ago
  6. 11. Bound again? isostatically
  7. 12. Timberdoodle
  8. 13. Nickname for robert feline