The reports and thematic maps database currently contains more than 50,000 bibliographic citations for USGS publications, including numbered series begun as early as 1882. Citations are added regularly. The current availability and price of in-stock products for purchase from the Branch of Information Services in Denver, Colorado, is given with each citation. A limited number of Biological Resources Discipline report citations, primarily historical research reports, are included.

Antarctic Geologic Maps (A)

Circulars (CIR)

Technical or nontechnical information of popular interest including timely administrative or scientific information. Available to public free of charge.

Coal Investigations (C-) Maps

Origin, character, and resource potential of coal deposits shown by geologic maps, structure contours, cross sections, columnar sections, and measured coal sections, where appropriate. Text on same sheet or in an accompanying pamphlet.

Digital Data Series (DDS)

Includes a wide variety of digital data distributed through the medium of Compact Disc-Read Only Memory technology. This medium takes advantage of the latest technological advances in digital mass-storage and in the internationally recognized standards (ISO-9660) for CD-ROM's

Fact Sheets (FS)

Used to disseminate timely information on scientific and technical programs of the U.S. Geological Survey. Pamphlet with self cover, available free of charge.

Folios of the Geologic Atlas (GF)

Quadrangles named from a city, town, or prominent natural feature within the area covered.They include maps showing the topography, geology, underground structure and mineral deposits of the area and several pages of descriptive text and illustrations. May include maps of oil and gas and artesian water. Precursor to Geologic Quadrangles.

Geologic Quadrangle (GQ) Maps

Detailed geologic maps depicting areas of special importance to the solution of geologic problems. May portray bedrock or surficial units, or both. May include brief texts, structure sections, and columnar sections. 71/2- or 15-minute quadrangles printed in multicolor on topographic bases that meet National Map Accuracy standards.

Land Use and Land Cover (L) Maps

Various categories of land use and cover, both artificial and natural, for use by geographers, land-use planners, and others. Planimetric maps at scales of 1:250,000 or 1:100,000 on a single sheet.

Mineral Investigations Resource (MR) Maps

Information on mineral occurrences, mineral resources, mines and prospects, commodities, and target areas of possible resources other than coal, petroleum, or natural gas. Small scale (1:250,000 or smaller).

Miscellaneous Field Studies (MF) Maps

Rapidly prepared, low-budget maps in a broad range of presentations in terms of portrayal, completeness, interpretations, draftsmanship, scale, and area coverage. Single or multiple sheets.

Monographs (M)

Oil and Gas Investigations (OC) Charts

Information about known or possible petroleum resources, presented as logs, correlation diagrams, graphs, and tables, but ordinarily not as maps. Single or multiple sheets. Text printed on same sheet or in an accompanying pamphlet.

Oil and Gas Investigations (OM) Maps

Apply particularly to areas of known or possible petroleum resources. Typically include cross sections, columnar sections, structure contours, correlation diagrams, and information on wells drilled for oil and gas. Single or multiple sheets. Text usually on map sheet but sometimes printed as an accompanying pamphlet.

Open-File Reports (OF)

Unedited preliminary manuscripts, maps, and other material made available for public use but not considered part of the formal literature. Wide range of subject matter. Varied scales, areas covered, shapes, and methods of presentation.

Professional Papers (PP)

Comprehensive reports of significant and lasting scientific interest. Include results of resource studies and of geologic, hydrologic, or topographic investigations. Also collections of related papers addressing a single topic.

Techniques of Water-Resources Investigations (TWRI)

Manuals that describe approved procedures for planning and executing field and laboratory studies, including collecting, analyzing, and processing hydrologic data.

Water-Supply Papers (WSP)

Reports on all aspects of hydrology, including quality, recoverability, and use of water resources; statistical reports on streamflow, floods, groundwater levels, and water quality; and collections of short papers on related topics.

Water-Resources Investigations Reports (WRIR)

Hydrologic information, mainly of local interest, intended for quick release. Book or map format. Varied scales.

Geophysical Investigations (GP) Maps

Chiefly the results of aeromagnetic and (or) gravity surveys shown by contours. Area depicted may range in size from a few square miles to an entire country. Single or multiple sheets.

Hydrologic Investigations Atlases (HA)

A wide range of hydrologic and hydrogeologic data of regional and national interest, such as streamflow, ground water, water quality, and extent of flooding. Various scales. Single or multiple sheets.

Miscellaneous Investigations/ Geologic Investigations (I) Series

High-quality maps and charts of varied subject matter such as bathymetry, geology, hydrogeology, landforms, land-use classification, vegetation, and others including maps of planets, the Moon, and other satellites. Various scales. Topographic or planimetric bases; regular or irregular areas. May include a text printed as an accompanying pamphlet.

Bulletins

Significant data and interpretations of lasting scientific interest but generally narrower in scope than professional papers. Results of resource studies, geologic or topographic studies, and collections of short papers on related topics.