Unpublished Digital Geologic Map of Lewis and Clark National Historical Park and Vicinity, Washington and Oregon (NPS, GRD, GRI, LEWI, LEWI digital map) adapted from Oregon DOGAMI maps by Niem and Niem (1985) and Ma et. al. (2009), and a U.S. Geological Survey map by Wells (1989)
2012. Unpublished Digital Geologic Map of Lewis and Clark National Historical Park and Vicinity, Washington and Oregon (NPS, GRD, GRI, LEWI, LEWI digital map) adapted from Oregon DOGAMI maps by Niem and Niem (1985) and Ma et. al. (2009), and a U.S. Geological Survey map by Wells (1989). National Park Service (NPS) Geologic Resources Inventory (GRI) program
The Unpublished Digital Geologic Map of Lewis and Clark National Historical Park and Vicinity, Washington and Oregon is composed of GIS data layers complete with ArcMap 9.3 layer (.LYR) files, two ancillary GIS tables, a Map PDF document with ancillary map text, figures and tables, a FGDC metadata record and a 9.3 ArcMap (.MXD) Document that displays the digital map in 9.3 ArcGIS. These data formats also fully represent all of the features present on a GRI digital map, as well as containing related ancillary information GIS data tables. The data is also available as a 2.2 KMZ/KML file for use in Google Earth. Google Earth software is available for free at: http://www.google.com/earth/index.html. Users are encouraged to only use the Google Earth data for basic visualization, and to use the GIS data for any type of data analysis or investigation. The data were completed as a component of the Geologic Resources Inventory (GRI) program, a National Park Service (NPS) Inventory and Monitoring (I&M) Division funded program that is administered by the NPS Geologic Resources Division (GRD). Source geologic maps and data used to complete this GRI digital dataset were provided by the following: Oregon Department of Geology and Mineral Industries and U.S. Geological Survey. Detailed information concerning the sources used and their contribution the GRI product are listed in the Source Citation section(s) of this metadata record (lewi_metadata_faq.html; available at http://nrdata.nps.gov/geology/gri_data/gis/lewi/lewi_metadata_faq.html). Users of this data are cautioned about the locational accuracy of features within this dataset. Based on the source map scale of 1:100,000 and United States National Map Accuracy Standards features are within (horizontally) 50.8 meters or 167 feet of their actual location as presented by this dataset. Users of this data should thus not assume the location of features is exactly where they are portrayed in Google Earth, ArcGIS or other software used to display this dataset. All GIS and ancillary tables were produced as per the NPS GRI Geology-GIS Geodatabase Data Model v. 2.1. (available at: http://science.nature.nps.gov/im/inventory/geology/GeologyGISDataModel.cfm). The GIS data is available as a 9.3 personal geodatabase (lewi_geology.mdb), and as shapefile (.SHP) and DBASEIV (.DBF) table files. The GIS data projection is NAD83, UTM Zone 10N, however, for the KML/KMZ format the data is projected upon export to WGS84 Geographic, the native coordinate system used by Google Earth. The data is within the area of interest of Lewis and Clark National Historical Park.
- Type
- Geospatial Dataset
- Date of Issue
- 2012-09-27
- Publisher
- National Park Service (NPS) Geologic Resources Inventory (GRI) program
- Units
- GRD , GRI , LEWI
- Keywords
- Astoria, Cape Disappointment, Chinook, Chinook Tribe, Clatsop Tribe, Columbia River, Columbia River Basalt Group, Continental Shelf, Corp of Discovery, costal geology, DBASE IV tables, Digital Data, Digital Geologic Map, Digital Geologic-GIS Map, Dismal Nitch, exploration wells, Fort Clatsop, Fort Columbia, Fort Stevens, Geodatabase, Geologic Resource Evaluation, Geologic Resources Division, Geologic Resources Inventory, Geologic Unit Descriptions, Geologic Unit Information Table, Geologic Units, Geologic-GIS Map, Geology, Geoscientific Information, GIS Data, GRD, GRI, Ilwaco, intrusive basalt, Knappton, LEWIAMA (Alteration and Metamorphic Areas), LEWIAMAA (Alteration and Metamorphic Area Boundaries), LEWIATD (Geologic Attitude Observation Localities), LEWIDEF (Deformation Areas), LEWIDEFA (Deformation Area Boundaries), LEWIFLD (Folds), LEWIFLT (Faults), LEWIGLF (Geologic Line Features), LEWIGLG (Geologic Units), LEWIGLGA (Geologic Contacts), LEWIHZL (Hazard Feature Lines), LEWIJLN (Linear Joints), LEWIMIN (Mine Point Features), LEWISEC (Geologic Cross Section Lines), LEWISYM (Map Symbology), Long Beach, Long Island, Map Table, Naselle River, National Park Service, NPS, Oregon, Oregon Coast Range, Personal Geodatabase, petroleum exploration, Sedimentary Geology, Shapefile, Source Geologic Maps, Source Map Information Table, Source Maps, Unit Table, United States, USA, Washington, Willapa Bay, Willapa Hills, Willapa National Wildlife Refuge