Oregon Department of Geology and Mineral Industries 2020 Release 3 vector digital data Oregon Department of Geology and Mineral Industries Digital Data MILO-Release 3 Portland, Oregon, USA Oregon Department of Geology and Mineral Industries http://www.oregongeology.org Oregon Department of Geology and Mineral Industries 2020 Release 3 vector digital data Oregon Department of Geology and Mineral Industries Digital Data MILO-Release 3 Portland, Oregon, USA Oregon Department of Geology and Mineral Industries http://www.oregongeology.org/ Mineral Information Layer for Oregon-Release 3 (MILO-Release 3) is a geospatial database that stores and manages information regarding Oregons 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! MILO-Release 3 is intended for use as reference material supporting local- to statewide-scale mineral resource and environmental assessments. When contacting DOGAMI about this data set, please reference the data set title or other identifying information in your correspondence. DOGAMI publications can be downloaded from http://www.oregongeology.org 2020 Publication Complete As needed -124.777310 -116.483638 46.327156 41.930820 ISO 19115 Topic Category geoscientificinformation Oregon Geospatial Enterprise Office Metadata Keyword Thesaurus stone metallic mineral industrial mineral mineral resource zeolite sand and gravel MILO (Mineral Information Layer for Oregon) Mine Mineral fuel Aggregate Gemstone Borrow Pit Prospect Quarry Gravel Pit Mineral Occurrence Oregon Geospatial Enterprise Office Metadata Keyword Thesaurus North America​ United States of America Oregon Baker Benton Clackamas Clatsop Columbia Coos Crook Curry Deschutes Douglas Gilliam Grant Harney Hood River Jackson Jefferson Josephine Klamath Lake Lane Lincoln Linn Malheur Marion Morrow Multnomah Polk Sherman Tillamook Umatilla Union Wallowa Wasco Washington Wheeler Yamhill Oregon Geospatial Enterprise Office Metadata Keyword Thesaurus Oregon Geospatial Enterprise Office Metadata Keyword Thesaurus None REPORT DATA: This product is for informational purposes and may not have been prepared for or be suitable for legal, engineering, or surveying purposes. Users of this information should review or consult the primary data and information sources to ascertain the usability of the information. This publication cannot substitute for site-specific investigations by qualified practitioners. Site-specific data may give results that differ from the results shown in the publication. See the accompanying text report for more details on the limitations of the methods and data used to prepare this publication. Oregon Department of Geology and Mineral Industries mailing and physical address

800 NE Oregon Street Suite 965

Portland Oregon 97232 USA 1 971 673 1555 1 971 673 1562 dogami-info@oregon.gov When contacting DOGAMI about this data set, please reference the data set title or other identifying information in your correspondence. DOGAMI publications can be downloaded from http://www.oregongeology.org Jason D. McClaughry Oregon Department of Geology and Mineral Industries Eastern Oregon Regional Geologist jpeg image (.jpg) The Mineral Information Layer of Oregon Release 3 (MILO Release-3) is a large database developed over several decades by DOGAMIs researchers and reporters. Funding for the compilation of MILO Release-3 during 2018 to 2020 was provided by the U.S. Geological Survey (USGS) National Geological and Geophysical Data Preservation Program (NGGDPP) under assistance award G18AP00102. Unclassified Attribute accuracy is tested by manual comparison of the source and hard copy plots. However, for those point that do not have a corresponding mark on a digital U.S. Geological Survey 1:24,000-scale quadrangle (DRG), the accuracy of this data is dependent on (1) detail level (e.g. location information) of the source material and (2) interpretation procedures for capturing that source. Field checking of the data was not performed. No duplicated features exist although individual point features may overlap and share the same coordinates but have differences in attribute(s). Because the data were collected and reported by numerous people, the descriptions provided are not highly consistent in structure or terminology or similar characteristics may be described differently. In attempt for some consistency some terminology was updated to a single common usage. For example, values Incorporated, Inc, Company, Co, Corporation, and Corp were changed to Inc., Co., and Corp. respectively when appropriate. Alternatively values Co or Co. were changed to County when applicable. Variations of unnamed or NA, prospect, quarry, sand pit, etc. were also updated to a single searchable value. Attribution of the database is generally sparse, meaning that not all fields are attributed. The spatial data are presented in the form of points representing mines, prospects, and occurrences and the coverage is statewide. Some points are spatially located in neighboring states. For mines, prospect, and mineral occurrences (including aggregate sources), the positional quality of each varies widely or is entirely unknown especially where their location information was obtained from older published and unpublished sources. For example, in older sources location information is often reported in a narrative format and are accurate within a mile and most to within a quarter mile. Those in newer publications are usually reported by subdivisions of a section of land (Public Land Survey System or PLS) or by latitude and longitude, and consequently, are probably accurate within a quarter of a mile, and most within an eighth of a mile. The digitizing method for locating the mines, prospects, and mineral occurrences involved heads-up digitization from U.S. Geological Survey Digital Raster (DRG) Image of 1:24,000-scale quadrangles on the computer screen by using a computer mouse to scribe the feature. With that said the following steps were taken to check each point features positional accuracy by 1) matching a mark (symbol) on the DRG and 2) inspecting each 2005 Digital Orthophoto Quarter-Quadrangles (DOQQs) for a mine-related disturbance. The accuracy of this data depends on a number of different types of errors: geodetic, machine, cartographic, and random errors. Not least of which depends on the level of detail included in the source material and the interpretation procedures for capturing that source. Nevertheless, the positional accuracy for many of the sites is much improved, now at least points overlay corresponding topographic mark. Still accuracy of this data is dependent on the level of detail of the source material and the interpretation procedures for capturing that source, at best this accuracy is no more than 30 to 40 ft. Vertical accuracy is impacted by the accuracy of the data source and the methods used to locate each mineral occurrence, prospect, and mine. Elevation values were calculated using current (May 8th, 2020) DOGAMI lidar where available or the state of Oregon 10 meter digital elevation model where lidar was not available. Clark A. Niewendorp and Ronald P. Geitgey 2010 Release 2 vector digital data Oregon Department of Geology and Mineral Industries Digital Data MILO-2 Portland, Oregon Oregon Department of Geology and Mineral Industries https://www.oregongeology.org/pubs/dds/p-MILO-3.htm online 2010 Publication Jerry J. Gray (deceased) 1993 MILOC93 tabular digital data Oregon Department of Geology and Mineral Industries Open-File Report O-93-08 Portland, Oregon Oregon Department of Geology and Mineral Industries 100000 CD-ROM 1993 Publication U.S. Bureau of Mines 1995 tabular digital data Special Publication 12-95 unknown US Bureau of Mines online 1995 Publication U.S. Geological Survey 2005 tabular digital data Mineral Resources On-Line Spatial Data MRDS Reston, Virginia U.S. Geological Survey http://tin.er.usgs.gov/mrds/ online DOGAMI replaced ESRIs GIS shapefile with ESRIs GIS feature class. This necessitated a conversion, in which the earlier version of MILO-Release 2 was converted from a ESRIs .shp (shapefile) file format to ESRIs .gdb (file geodatabase) file format by using ESRIs (Version 10.7) Load Data function. DOGAMI updated MILOs file structure to adhere to the Geologic Map Schema (GeMS), designed by the U.S. Geological Survey. The schema can be found here (https://ngmdb.usgs.gov/Info/standards/GeMS/). Elevation values were updated to reflect current, as of May 8th, 2020, lidar using DOGAMI bare earth digital elevation model where available. Where lidar was not available elevation values were updated to reflect the State of Oregon 10 meter digital elevation model. Oregon Department of Geology and Mineral Industries mailing and physical address

800 NE Oregon Street Suite 965

Portland Oregon 97232 USA 1 971 673 1555 1 971 673 1562 dogami-info@oregon.gov When contacting DOGAMI about this data set, please reference the data set title or other identifying information in your correspondence. DOGAMI publications can be downloaded from http://www.oregongeology.org NAD 1983 HARN Oregon Statewide Lambert Feet Intl 43.0 45.5 -120.5 41.75 1312335.958005249 0.0 coordinate pair 0.00032808398950131233 0.00032808398950131233 foot D North American 1983 HARN GRS 1980 6378137.0 298.257222101 MILO-3 Point- information of Oregons mineral occurrences, prospects and mines. Oregon Department of Geology and Mineral Industries Commodity All commodities listed in the literature for this site Oregon Department of Geology and Mineral Industries Type Commodity Type Oregon Department of Geology and Mineral Industries CommodityAbbreviation Commodity Abbreviation Oregon Department of Geology and Mineral Industries ODOTID A unique identifier which references records of information pertaining to an ODOT owned aggregate pit/quarry or private source Oregon Department of Geology and Mineral Industries USGSID A unique identifier which references records of information pertaining to a mineral property Oregon Department of Geology and Mineral Industries MLRRID The permit or site number from the Oregon Department of Geology and Mineral Industries, Mineral Land Regulation and Reclamation program. This is the unique record number Oregon Department of Geology and Mineral Industries OperatingStatus Indicates the operating status of the site at time of last modification. 1 = Mineral occurrence (no workings and/or production); 2 = Raw prospect (minor workings but no production); 3 = Developed prospect (workings but no production) ; 4 = Mine (present or past producer). Oregon Department of Geology and Mineral Industries SiteName The name of the mineral deposit or mining operation Oregon Department of Geology and Mineral Industries Synonym Other names that the site has had over time, or in the case of placers, names of other gravel bars along a river segment for which one location was chosen for the site name Oregon Department of Geology and Mineral Industries Owner Name of individual, company, or operator identified with operation Oregon Department of Geology and Mineral Industries County County in Oregon where the site is found, single county entry Oregon Department of Geology and Mineral Industries MiningDistrict Mining district the county mine record was assigned. Some districts are formal, but most are informal. Oregon Department of Geology and Mineral Industries Location Physical address or referenced to topographic point or feature Oregon Department of Geology and Mineral Industries PLSSSectionFraction The letters or single letter that follow the subdivision of township, range, and section system Oregon Department of Geology and Mineral Industries Section Section number; su= section unknown Oregon Department of Geology and Mineral Industries Township Township number and direction (N-S) Oregon Department of Geology and Mineral Industries Range Range number and Range character (E-W) Oregon Department of Geology and Mineral Industries Latitude Latitude in decimal degree or Y coordinate for center point of each point Oregon Department of Geology and Mineral Industries Longitude Longitude in decimal degree or X coordinate for center point of each point Oregon Department of Geology and Mineral Industries TopoMap24k U.S. Geological Survey 1:24,000-scale (24K) topographic map in Oregon where site is located Oregon Department of Geology and Mineral Industries TopoMap100k U.S. Geological Survey 1:100,000-scale (100K) topographic map in Oregon where the site is located Oregon Department of Geology and Mineral Industries ElevationFeet Point of reference in feet. the elevation of the site Oregon Department of Geology and Mineral Industries CommoditiesProduced Commodities produced and sold or used Oregon Department of Geology and Mineral Industries ProductSize A broad characterization of the magnitude of production at the site. Two different categorizations were used, a three-fold set based on magnitude (Small, Medium, Large) and a simple indicator (Yes or No), with some records showing Undete for unknown. Oregon Department of Geology and Mineral Industries ProductInformation Production information Oregon Department of Geology and Mineral Industries OreMaterial Ore material (valuable minerals or mineral material) Oregon Department of Geology and Mineral Industries DepositType General type of deposit or resource present at the site Oregon Department of Geology and Mineral Industries WorkingsType Type of workings Oregon Department of Geology and Mineral Industries WorkingsDescription Description of exploration and/or mine workings as described from source data Oregon Department of Geology and Mineral Industries YearOfDiscovery Year the mineral discovery was made Oregon Department of Geology and Mineral Industries YearProductionStarted Year that mineral production started Oregon Department of Geology and Mineral Industries FullReference1 Reference #1 Oregon Department of Geology and Mineral Industries ShortReference1 Publication Series Information Oregon Department of Geology and Mineral Industries Pages1 Page number of reference where site is mentioned or described Oregon Department of Geology and Mineral Industries FullReference2 Reference #2 Oregon Department of Geology and Mineral Industries ShortReference2 Publication Series Information Oregon Department of Geology and Mineral Industries Pages2 Page number of reference where site is mentioned or described Oregon Department of Geology and Mineral Industries FullReference3 Reference #3 Oregon Department of Geology and Mineral Industries ShortReference3 Publication Series Information Oregon Department of Geology and Mineral Industries Pages3 Page number of reference where site is mentioned or described Oregon Department of Geology and Mineral Industries FullReference4 Reference #4 Oregon Department of Geology and Mineral Industries ShortReference4 Publication Series Information Oregon Department of Geology and Mineral Industries Pages4 Page number of reference where site is mentioned or described Oregon Department of Geology and Mineral Industries FullReference5 Reference #5 Oregon Department of Geology and Mineral Industries ShortReference5 Publication Series Information Oregon Department of Geology and Mineral Industries Pages5 Page number of reference where site is mentioned or described Oregon Department of Geology and Mineral Industries DataSourceID Data source identification foreign key to geologic map. Full citations can be found in the Oregon Geologic Data Compilation. Unique code for each original reference map, expressed as the first 4 letters of the first authors last name, first and middle initials, the year of publication, and occasionally a map identifier Oregon Department of Geology and Mineral Industries MapUnit Reference map unit label symbol taken from the original geologic reference map found in the Oregon Geologic Data Compilation Oregon Department of Geology and Mineral Industries MapUnitName Reference map unit name taken from the map legend or explanation of map units on the original geologic reference map found in the Oregon Geologic Data Compilation Oregon Department of Geology and Mineral Industries ThematicUnitLabel Previously known as the Geologic Merge Unit Label. Label (period delimited) assigned by area geologists that combines all the original map units into 7 different general geologic categories found in the Oregon Geologic Data Compilation Oregon Department of Geology and Mineral Industries ThematicRockType General geologic rock type of the geologic merge unit label, expressed by the genesis of the unit found in the Oregon Geologic Data Compilation Oregon Department of Geology and Mineral Industries ThematicAge Age of geologic merge unit based on the Geologic Time Scale found in the Oregon Geologic Data Compilation Oregon Department of Geology and Mineral Industries ThematicTerraneGroup Stratigraphic name (formally or informally named) for the terrane or group found in the Oregon Geologic Data Compilation Oregon Department of Geology and Mineral Industries ThematicFormation Stratigraphic name (formally or informally named) for the geologic formation found in the Oregon Geologic Data Compilation Oregon Department of Geology and Mineral Industries ThematicMember Stratigraphic name (formally or informally named) for the member type found in the Oregon Geologic Data Compilation Oregon Department of Geology and Mineral Industries ThematicUnit Stratigraphic name (formally or informally named) for the unit type found in the Oregon Geologic Data Compilation Oregon Department of Geology and Mineral Industries ThematicLithology Characteristic lithology type name for the geologic merge unit label found in the Oregon Geologic Data Compilation Oregon Department of Geology and Mineral Industries ArcJoinKey Concatenation of DataSourceID and MapUnit fields without a space in between - for use with joins or relates of data tables in ArcGIS or other GIS software found in the Oregon Geologic Data Compilation Oregon Department of Geology and Mineral Industries MILO_ID Primary key. Values = ID_1, ID_2, ID_3, etc. Values must be unique to the database Oregon Department of Geology and Mineral Industries The following attributes are possible for records in the mineral information point data: Commodity, Type, CommodityAbbreviation, ODOTID, USGSID, MLRRID, OperatingStatus, SiteName, Synonym, Owner, County, MiningDistrict, Location, PLSSSectionFraction, Section, Township, Range, Latitude, Longitude, TopoMap24k, TopoMap100k, ElevationFeet, CommoditiesProduced, ProductSize, ProductInformation, OreMaterial, DepositType, WorkingsType, WorkingsDescription, YearOfDiscovery, YearProductionStarted, FullReference1, ShortReference1, Pages1, FullReference2, ShortReference2, Pages2, FullReference3, ShortReference3, Pages3, FullReference4, ShortReference4, Pages4, FullReference5, ShortReference5, Pages5, DataSourceID, MapUnit, MapUnitName, ThematicUnitLabel, ThematicRockType, ThematicAge, ThematicTerraneGroup, ThematicFormation, ThematicMember, ThematicUnit, ThematicLithology, ArcJoinKey, and MILO_ID. Not all mineral information points have applicable attributes. Appropriate attributes are filled in for each point. Oregon Department of Geology and Mineral Industries Oregon Department of Geology and Mineral Industries mailing and physical address

800 NE Oregon Street Suite 965

Portland Oregon 97232 USA 1 971 673 1555 1 971 673 1562 dogami-info@oregon.gov When contacting DOGAMI about this data set, please reference the data set title or other identifying information in your correspondence. DOGAMI publications can be downloaded from http://www.oregongeology.org Although these data have been processed successfully on a computer system at the Oregon Department of Geology and Mineral Industries, no warranty expressed or implied is made by DOGAMI regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. GDB Esri File Geodatabase 2020 2020 Oregon Department of Geology and Mineral Industries mailing and physical address

800 NE Oregon Street Suite 965

Portland Oregon 97232 USA 1 971 673 1555 1 971 673 1562 dogami-info@oregon.gov When contacting DOGAMI about this data set, please reference the data set title or other identifying information in your correspondence. DOGAMI publications can be downloaded from http://www.oregongeology.org Oregon Department of Geology and Mineral Industries Metadata Standard 1.4 None None None None None