Skogsekologi
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Arbcom ru editing.svg
Icon of simple gray pencil. An icon for Russian Wikipedia RFAR page.
Icon of simple gray pencil. An icon for Russian Wikipedia RFAR page.
Redwood M D Vaden.jpg
Simpson Reed Discovery Trail, Jedediah Smith Redwoods State Park, Northern California. Image shows a large coast redwood trunk, with arborist Mario Vaden, for size comparison.
Simpson Reed Discovery Trail, Jedediah Smith Redwoods State Park, Northern California. Image shows a large coast redwood trunk, with arborist Mario Vaden, for size comparison.