This index can be searched by geographic area, subject, latitude and longitude, and author. Search for government publications by title keyword, agency, author, or call number. The Library has the Monthly Catalog from 1910 to the present. This CD-ROM database searches all government publications from 1976 to the present. While its scope goes well beyond USGS publications, it has the advantage of offering quick searching capabilities and is updated once a month.
Bulletins address a single topic and are typically limited in geographic coverage or scope.
Included in the Bulletins are results of resource studies, results of geologic and topographic investigations, as well as collections of short papers pertaining to one topic. In Publications of the U.S. Geological Survey, these are noted in the index entries as B-no. These publications tend to cover subjects fairly wide in scope, with the general public as the intended audience. In Publications of the U.S. Geological Survey, these are noted in the index entries as C-no. USGS Digital Data Series.