Mt. Toby Quadrangle, Massachusetts (IMAGE)
Caption
Massachusetts State Geologist Stephen Mabee and colleagues recently annoucned that newly digitized surficial geology maps of the entire state are available online now. They provide details of what Mabee calls the 'kitty litter' mix of glacial tills, various sands and gravels on the earth's surface.
Credit
USGS/MassGIS
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