Monday, July 19, 2004

Yukon River, Plant and animal life

Coniferous forests grow to low height and low densities across the valley floors and lower mountain slopes of the Yukon River basin. The upper tree line is at an elevation of about 3,500 to 4,500 feet, depending on local exposure and drainage; thus, about two-thirds of mountainous Yukon Territory is treeless. The largest stands of potentially commercial forest are along the

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