Limnologi (sötvatten)
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The Columbia River Gorge National Scenic Area encompasses 292,500 acres in an 85-mile run of the Columbia River, beginning at the Sandy River about 17 miles east of Portland, …
Winter ended in late March. April was a transitional month, with freezing rains and raw winds. In May, spring truly arrives. As day after day the sun continues to shine, to warm …
Twelve months of visits to a mountain lake tells more than twelve tales. The solitude found during a Wednesday in the winter is completely different than the chaos found on a …