The USGS was established in 1879 with the responsibility to map public lands, examine geological structure, and evaluate mineral resources. Over the next century, its mission expanded to include the research of groundwater, ecosystems, environmental health, natural hazards, and climate and land use change.
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Apr 22, 2025
United States Geological Survey, 2025, "SPARROW Surface Water-Quality Modeling", https://doi.org/10.7910/DVN/ZSAIH3, Harvard Dataverse, V1
A modeling tool for the regional interpretation of water-quality monitoring data.
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