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Click on the links below to see detailed descriptions of these maps. |
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PLEASE USE THE USGS WEBSITE |
| The miscellaneous Investigations (I) Series contains mostly multicolor maps covering diverse topical material such as bedrock and surficial geology, marine geology, mineral and energy resource, and geophysics and geochemistry. The series also includes maps of the Earth's Moon and other planetary bodies, hydrogeology, landforms, earthquake epicenters, map projections, and oblique-view maps. Maps cover both quadrangles and irregularly shaped areas and are usually shown on a topographic or planimetric base at a variety of scales and in a variety of formats. Many pre-1961 I Series maps are photogeologic maps that were compiled from aerial photographs with little or no field checking. |  Part of "Bedrock and Engineering Geologic Maps of New County and Parts of Kings and Queens Counties, New York, and Parts of Bergen and Hudson Counties, New Jersey," sheet 2, 1994, 1:24,000, polyconic projection, 41 x 46 inches |
| Most maps have explanatory text printed on the map margin or in a separate pamphlet. A few are on multiple sheets. Sheet sizes and projections vary. Each map is folded and placed in a paper jacket. | |