McGregor, Joseph K. Abston, Carl 1994 Digital Data Series 12 Reston, VA U.S. Geological Survey https://doi.org/10.3133/ds12 https://mrdata.usgs.gov/mine-photos/ A collection of photographs of mine sites, mining operations, and tailings taken prior to 1980 at a variety of sites throughout Colorado and Utah. A database of photograph metadata is provided to contain the subject and location of each photograph. Make available visual information about historical mines and mining operations that generally do not exist now in their original form. This site specific information can inform policy discussions with regard to site remediation. 1900 1980 ground condition; photographs were taken throughout this time interval Complete None planned -114.05 -102.05 42 37 none none Alexandria Digital Library Feature Type Thesaurus disposal sites industrial sites mine sites Common geographic areas fUS08 = Colorado fUS49 = Utah General glossary for mineral resources spatial data PNG USGS Thesaurus abandoned mines and quarries business and economics coal resources economic geology image collections metallic ores mine waste nonmetallic mineral resources photography ISO 19115 Topic Category geoscientificInformation Peter N Schweitzer USGS Geology, Energy, and Minerals Science Center Geologist mailing address

12201 Sunrise Valley Drive

Reston VA 20192-0002 USA 703-648-6533 703-648-6252 pschweitzer@usgs.gov Information drawn from the original CD was taken from publications containing the photographs; these have not been independently verified. Photograph descriptions come from multiple scientific authors, so vary in level of detail and in the type of information they contain. Of 558 photographs, 523 lack PLSS information; 495 lack map quadrangle; and 253 lack a mineral commodity name. McGregor, Joseph K. Abston, C. C. 1994 Data Series 12 Reston, VA U.S. Geological Survey, https://pubs.er.usgs.gov/publication/ds12 digital photos on CD 1994 publication date DDS-12 CD-ROM Information contained in this source was reformatted and rewritten to reflect internet access through the web instead of distribution on CD-ROM PCX images were converted to PNG format using ImageMagick 6.7.7. Image attribute data were converted from gsmphoto format to SQLite using PHP scripts, with small manual modifications to fix errors. Image description and display software was built for the web using PHP and SQLite 3. DDS-12 CD-ROM 201302 Photographs are not strictly georeferenced; instead the state and county of the subject is given for each photograph. Some photographs have additional information such as USGS map quadrangle (in the 7.5 minute series) or PLSS (section, township, and range). photos Attribute information describing the photos, their subjects, and the location of their subjects. id Arbitrary integer assigned to distinguish photograph records file_name Name of the photo image file, excluding extension state State in which the subject of the photo lies county County in which the subject of the photo lies mine_name Name of the mine or other subject of the photo plss Public Land Survey System description of the location of the subject (section, township, range) quad Name of the map quadrangle (usually 7.5 minute) containing the subject mineral Principal mineral commodity associated with the site author Principal author of the report in which the photograph originally appeared photonum Photo or figure number of this photo within the original report caption Caption for the photo given in the original report w Width of the image in pixels h Height of the image in pixels color Colorspace of the image, Gray or sRGB (color) fips State and county FIPS code for the location of the subject, matches a value in catalog.geo:code datadxny Data dictionary for the attribute data id Row ID to facilitate changes in the table tblorder Sequence index for ordering tables in display tblname Name of the database table number Sequence index for ordering fields within the tables in display label Field identifier within tables, typically somewhat mnemonic but also generally short and simple to facilitate use in database software. category General category of information contained in the field short_desc Brief descriptive text serving as an enhanced field label, may contain spaces or other characters that would not work in database field names. description Longer text explaining what the field contents are, possibly with examples and notes on the usage, scope, and history of those contents. link Hypertext link, where appropriate, to online information about the field or its general contents. Used in some databases on MRData.usgs.gov to link the data dictionary to USGS publications that explain the fields in much greater detail. origin Short identifier indicating the original source of the field or its definition. Typically used where the field is carried forward from a much older data source such as the NURE program. sqltype Data type of the field as stored in MySQL dbftype Data type of the field when exported as DBF width Maximum number of characters in the field. prec For use with numeric fields in DBF files, the number of digits to the right of the decimal point that will be exported. units For numeric fields only, the units of measure of the data in the field, if units apply Peter N Schweitzer USGS Geology, Energy, and Minerals Science Center Geologist mailing address

12201 Sunrise Valley Drive

Reston VA 20192-0002 USA 703-648-6533 703-648-6252 pschweitzer@usgs.gov USGS Digital Data Series DDS-12 This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards (or with the North American Stratigraphic Code). Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. PNG Images converted from PCX format on an original CD-ROM unzip 371 https://mrdata.usgs.gov/mine-photos/photos.zip none 20201230 Peter N Schweitzer USGS Geology, Energy, and Minerals Science Center Geologist mailing address

12201 Sunrise Valley Drive

Reston VA 20192-0002 USA 703-648-6533 703-648-6252 pschweitzer@usgs.gov Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998