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Outlines of calderas associated with the Yellowstone Plateau Volcanic Field.<\/SPAN><\/P>

This is a layer that was derived from the geology coverages of Plate 1, Plate 2, and Plate 3 in the Christiansen (2001) Professional Paper. LTYPE is original value from the coverages.<\/SPAN><\/P>

Data were minimally modified as necessary (e.g. clipped to spatial extent, desired features extracted, projected to a different coordinate system, attribute fields renamed and/or added, symbolized) by the Wyoming State Geological Survey (WSGS) in April, 2020 for simplified display on the interactive Geology of Yellowstone Map. 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