The Nationwide Hydrography Dataset Plus Excessive Decision map of waterways, created by the US Geological Survey, is the highest-resolution survey of its variety.
With practically 25 million rivers, streams, pipe strains, and different linear options, over 7 million lakes, ponds, reservoirs, wetlands, and different space options, and thrilling new cartography, the new excessive decision characteristic layer is a big advance over the earlier model, which was primarily based on the NHD Medium decision dataset, and had 3 million line options and fewer than a half million space options.
The submit Extremely-detailed map of U.S. rivers appeared first on Boing Boing.
The Nationwide Hydrography Dataset Plus Excessive Decision map of waterways, created by the US Geological Survey, is the highest-resolution survey of its variety.
With practically 25 million rivers, streams, pipe strains, and different linear options, over 7 million lakes, ponds, reservoirs, wetlands, and different space options, and thrilling new cartography, the brand new excessive decision characteristic layer is a big advance over the earlier model, which was primarily based on the NHD Medium decision dataset, and had 3 million line options and fewer than a half million space options.
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The submit Extremely-detailed map of U.S. rivers appeared first on Boing Boing. Learn Extra