NLCD Tree Canopy, New York, 2001
2001. U.S. Geological Survey. The National Land Cover Database 2001 tree canopy layer was produced through a cooperative project conducted by the Multi-Resolution Land Character...
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Zebra Mussels, New York State, 2001
2001. U.S. Geological Survey and Florida Caribbean Science Center. A small mollusk called the zebra mussel has been steadily invading America's rivers and lakes. Zebra mussels colonize water intake pipes and severe...