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The New Mexico Bureau of Geology and Mineral Resources’ Preliminary Map Series:
Expediting Dissemination of STATEMAP Geologic Map Data to the Public

By David J. McCraw, J. Michael Timmons, and Adam S. Read
New Mexico Bureau of Geology & Mineral Resources

Digital Mapping Techniques ‘05— Workshop Proceedings Edited by David R. Soller April 24-27, 2005 Baton Rouge, Louisiana, U.S. Geological Survey, Open-File Report 2005-1428, 274p.


Each year, new geologic map data produced under contract to the USGS National Cooperative Geologic Mapping Program’s STATEMAP program are in high demand in New Mexico. Scientists, decision makers, engineers, and others request or need these data for many reasons, as soon as possible. Given that cartographic production, reviews, and the application of map standards set by the New Mexico Bureau of Geology and Mineral Resources are lengthy processes, the Bureau has created a new Preliminary Map Series. These draft map data are now available for download as PDF fi les from the Bureau’s website in early June of each year, immediately after completion of the mapping and delivery of the STATEMAP contractual requirement to the USGS. These preliminary maps are either cleaned and rectifi ed scans of authors’ original greenline mylars, or original digital (vector) linework data that are placed into a draft layout template that includes rudimentary ancillary data (cross sections, map unit descriptions, correlation charts, photos, etc.). The draft map is then uploaded to the Bureau website, for public access. After digitization, attributing, and labeling of the map and cross sections, this online preliminary map is replaced by a full-color, but still preliminary, version of the map; after peer review, that map is superceded by the fi nal version published in the Bureau’s formal Geologic Map Series. [Full text available...]