DOGAMI DIGITAL DATA SERIES
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Mineral Information Layer for Oregon, release 4 (MILO-4), compiled by Clark A. Niewendorp, Jason D. McClaughry, Carlie J.M. Azzopardi, Lowell H. Anthony, Vanessa M. Swenton, Jon J. Franczyk, and Fletcher E. O'Brien.
Release 4 supersedes all previous releases of MILO.
Disclaimer
Mining sites are included for informational purposes only and should not be used to infer acceptable or permitted land use actions. Interested parties should contact their local land use authority to verify zoning and applicable land use ordinances. Respect the rights of private property owners. Understand that recreation in or around inactive mine sites is extremely dangerous and can result in serious injury or death. Stay out and stay alive!
No warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. We also urge users to pay careful attention to the contents of the metadata file associated with these data and to the compilation process and limitations described therein. The Oregon Department of Geology and Mineral Industries shall not be held liable for improper or incorrect use of the data described and/or contained herein. Data are not intended for site-specific investigations.
What's in This Publication?
MILO-4 is a geospatial database that stores and manages information regarding Oregon's mineral occurrences, prospects, and mines. The geodatabase is the primary way the state of Oregon extracts, researches, and displays available historical mining and mineral resource information at local to statewide scales.
Publication Downloads
Access the Interactive Map
To access the interactive map, click here.
Geographic Information System (GIS) Data
Geodatabase is Esri® version 10.7 format.
Metadata is embedded in the geodatabase and is also provided as separate .xml files.
MILOv4.gdb (GIS data bundle zip file)
| MILO | Points. Mineral Information Layer for Oregon, release 4 (MILO-4), is a geospatial database that stores and manages information regarding Oregon's mineral occurrences, prospects, and mines. Understand that recreation in or around inactive mine sites is extremely dangerous, and can result in serious injury or death. Stay out and stay alive!
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.xml |
AssayPointLocations
| Points. This data set represents center points of: 1) the GIS Version of the Public Land Survey System including both rectangular and non-rectangular surveys; 2) County centroid; and 3) the BLM OR jurisdictional and cartographic state perimeter for Oregon. Assay points are located by township-range-section grid where samples were in surveyed areas at the time of collection and by county and/or State of Oregon for samples obtained from unsurveyed areas. These data are related as a one to many relationship to the Assay Returns table which contains the attribute information of scanned PDF assays.
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AssayReturns
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Assay returns house analytical results obtained from DOGAMIs in-house fire assay, chemical, and spectrograph laboratories between 1937 and 1985. This table contains fields for client information (e.g., name, address, citizenship), sample location information (e.g., county, mining district, township, range, section, the analysis desired), and sample type (e.g., channel, grab, description; nature of sample or mineralization), which were provided by the client at the time of submittal to DOGAMI. Hyperlinks to PDF scans of the paper documents were generated for public access to the documents.
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.xml
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| CountyMineRecords | This data set represents the relationship of documents that have been referenced to specific MILO point(s) in a many to many relationship. County Mine Records are hyperlinks to scans of the literature originally found in DOGAMI published and unpublished hardcopy holdings. Scans have been grouped and combined into single PDFs that may include maps, letters, news clippings, photographs, and reports. Note that some PDF files are very large. These documents were then related to associated MILO points by DOGAMI personnel. |
.xml
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| LargeFormatMaps | Large Format Maps are hyperlinks to scans of the literature originally found in DOGAMI published and unpublished hardcopy holdings in the Portland and Grants Pass offices. Hardcopy was scanned and saved in .tiff format. Tiffs were then converted to PDFs. These documents were then related to associated MILO points by DOGAMI personnel. |
.xml
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| LargeFormatMapPoints | Points. Large Format Map Points are scans of the literature originally found in DOGAMI published and unpublished hardcopy holdings in the Portland and Grants Pass offices. Hardcopy was scanned and saved in .tiff format. Tiffs were then converted to PDFs. Understand that recreation in or around inactive mine sites is extremely dangerous, and can result in serious injury or death. Stay out and stay alive! Large Format Map Points is intended for use as reference material. This data set represents the documents that have not been referenced to specific MILO point(s). |
.xml
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