The Utah Geological Survey (UGS) Geologic Map Database (MAPBIB) contains an inventory of approximately 2850 geologic maps covering various parts of Utah, that date from about 1890 to present, and that vary from formally published USGS and UGS Map and Bulletin Series maps, to informal consulting reports and internal unpublished ?sketch? maps. About half of these maps were published in production runs in which hundreds of copies were printed ? most of these maps are still widely distributed and readily available. However, over 1000 of the maps in our MAPBIB database were produced in only very limited numbers, are completely out of print, are in obscure or remote libraries, or are limited-distribution ?gray? literature that is very hard to locate. These maps and accompanying booklets describe stratigraphy, structure, Quaternary geology, geologic hazards, economic geology, ground-water resources, and scenic geologic resources.
