Hopkins, Griffith Morgan
Found in 7 Collections and/or Records:
Map, in two parts, shows azoic and paleozoic formations in New Jersey. It also contains several relevant cross-sections.
Map shows cretaceous formations in New Jersey, accompanied by relevant cross-sections, columnar sections, and a color key.
Map, in two parts, shows the locations of iron mines in Morris County, New Jersey, in 1868.
Map shows the Oxford Furnace Iron Ore vein in Warren County, New Jersey.
Map shows tertiary and recent formations in southern New Jersey, accompanied by an explanatory table of colors.
Map shows triassic formations in New Jersey, with an explanatory table of colors and some relevant cross-sections.
Map focuses on zinc mines in Sussex County, New Jersey. It also shows topography of the county, with some cross-sections.