fgdc digital cartographic standard for geologic map symbolization color palette

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#474B48 #A5A5A5 #EEEFF1 #CCC2E0 #8E838A

related tags: 474B48 484A49 8B8689 8E838A A5A5A5 CCC2E0 CFC9D8 EEEFF1 EFEFF1 cartographic cartography digital fgdc geologic gis map standard symbolization