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STEWARDS - A data delivery application for the USDA/ARS Conservation Effects ...
A data delivery application that provides web-based access to of soil, water, climate, land management, and geospatial data produced by Conservation Effects Assessment Project... -
USGS Mineral Resources: Sediment-hosted zinc-lead deposits of the world
From the site: "Information on sediment-hosted zinc-lead deposits from around the world with grade and tonnage models, a general classification based on geologic setting,...