Climbing a flux tower in the forest
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Willow Creek Flux Tower, WI, USA - Climbing a flux tower in the forest by Steven Rowell (22.05.2013 15:15) [aporee.org/PUBLIC-DOMAIN]
Willow Creek Flux Tower, WI, USA - Climbing a flux tower in the forest by Steven Rowell (22.05.2013 15:15) [aporee.org/PUBLIC-DOMAIN]