Oregon Ecoregions

Metadata also available as


Originator: Oregon Natural Heritage Program
Publication_Date: Unpublished Material
Title: Oregon Ecoregions
Geospatial_Data_Presentation_Form: vector digital data
Other_Citation_Details: Source Scale 1:250000
Online_Linkage: <http://www.oregon.gov/DAS/IRMD/GEO/sdlibrary.shtml>
Ecoregions denote areas of general similarity in ecosystems and in the type quality, and quantity of environmental resources. This map depicts revisions and subdivisions of ecoregions that was compiled at a relatively small scale (Omernik 1987). Compilation of this map, performed at the larger 1:250,000 scale, was part of a collaborative project between the United States Environmental Protection Agency, National Health and Environmental Effects Research Laboratory (NHEERL)- Corvallis, OR., the U.S. Forest Service, Natural Resources Conservation Service, Washington State Department of Natural Resources & the Oregon Natural Heritage Program. The ecoregions and subregion are designed to serve as a spatial framework for environmental resource management. The most immediate needs by the states are for developing regulations, biological criteria and water quality standards, and for setting management goals for nonpoint-source pollution. Explanation of the methods used to describe the ecoregions are given in Omernik (1995), Griffith et al. (1994), and Gallan et al. (1989). This map is a draft product of one of a few regional interagency collaborative projects aimed at obtaining consensus between the EPA, the NRCS, and the USFS regarding alignments of ecological regions.
Assist managers of aquatic and terrestrial resources in understanding the regional patterns of the realistically attainable quality of these resources.
1) All ecoregion and subregion delineations are digitized from the U.S.G.S. 1:250,000 base maps. Prior to digitizing each base map must be initialized to orient the map and relate it in geographic coordinates to the surface of the earth. When the registration tics are entered at the start of digitizing a transformation error of <0.003 must be achieved in order to insure a high level of registration accuracy. The person responsible for digital data entry completes a data sheet describing coverage name, date of entry, and whether a topology for the coverage is established. 2) After each 1:250,000 base map has been digitized, a topology for each coverage is established. This function creates unique identities for each polygon. 3) Next each base map is tested for polygon errors through an internal editing function. Errors are corrected for unlabeled polygons, unclosed polygons, or polygons with more than one label. Topology is reestablished for each coverage and tested again until no error are indicated. 4) The digital coverage is then plotted at the same scale as the original base map. This coverage is overlaid on a light table with the original and visually inspected for replication of original lines with digitized lines. Two individuals independently inspect the coverage for accuracy. Revisions: Revision 1. 9/95. This coverage was appended from completed Level IV coverages in Oregon and Washington [Coast Range (completed 9/92), Blue Mountains and Columbia Plateau (7/95), Puget lowlands, Willamette Valley, Cascades, East Cascade Slope, North Cascades and Klamath Mountains ecoregions (6/95) 2. 6/96 update coverage. delete 'hatched' areas. Consolidate all volcanics. updated lines per Sandy and Davids requests. 3. Revised level IV ecoregions in E. Oregon and E. Washington and added ecoregions for Idaho. 11/00 Reviews_Applied_to_Data: Data was reviewed by David Pater, MERSC, 9/95. Data was reviewed by David Pater, and Sandy Bryce, MERSC, 6/96. Data was reviewed by Alan Woods, Dynamac, 11/00
Calendar_Date: 1995
Currentness_Reference: publication date
Progress: In work
Maintenance_and_Update_Frequency: Irregular
West_Bounding_Coordinate: -124.799228
East_Bounding_Coordinate: -116.426571
North_Bounding_Coordinate: 46.278522
South_Bounding_Coordinate: 41.920409
Theme_Keyword_Thesaurus: None.
Theme_Keyword: level 4 ecoregions
Theme_Keyword: bioscience
Place_Keyword: oregon
Place_Keyword: washington
Place_Keyword: idaho
Access_Constraints: None.
Use_Constraints: for use at 1:250,000 or smaller scales.
Browse_Graphic_File_Name: <http://navigator.state.or.us/sdl/data/image/k250/ecoregion.html>
Browse_Graphic_File_Description: Oregon Ecoregions
Browse_Graphic_File_Type: JPEG
Security_Classification: Unclassified
Native_Data_Set_Environment: Windows_NT, 4.0, Intel NT, ARC/INFO version 8.0.2
Publication_Date: 2000
Publication_Time: Unknown
Title: Ecoregional Descriptions
Geospatial_Data_Presentation_Form: document
Online_Linkage: <http://navigator.state.or.us/sdl/data/metadata/k250/ecoregion.pdf>

Logical_Consistency_Report: Polygon and chain-node topology present.
Source_Scale_Denominator: 250000

Direct_Spatial_Reference_Method: Vector
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 259

Map_Projection_Name: Lambert Conformal Conic
Standard_Parallel: 43.000000
Standard_Parallel: 45.500000
Longitude_of_Central_Meridian: -120.500000
Latitude_of_Projection_Origin: 41.750000
False_Easting: 1312335.958000
False_Northing: 0.000000
Planar_Coordinate_Encoding_Method: coordinate pair
Abscissa_Resolution: 0.004096
Ordinate_Resolution: 0.004096
Planar_Distance_Units: international feet
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222

Entity_Type_Label: ecoregion
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Sequential unique whole numbers that are automatically generated.
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Unrepresentable_Domain: Coordinates defining the features.
Attribute_Label: AREA
Attribute_Label: PERIMETER
Attribute_Label: ECOREGION_
Attribute_Label: ECOREGION1
Attribute_Label: ECO
Attribute_Label: NAME
Attribute_Label: LEVEL3
Attribute_Label: LEV3_NAME
Attribute_Label: ORNHP_REG
Attribute_Label: ORNHP_NAME
Attribute_Label: TNC_REG
Attribute_Label: TNC_NAME
ORWA_ECO.PAT ECO - ecoregion ID code 1 Coast Range 1a Coastal Lowlands 1b Coastal Uplands 1c Low Olympics 1d Volcanics 1e Outwash 1f Willapa Hills 1g Mid-Coastal Sedimentary 1h Southern Oregon Coastal Mountains 1i Redwood Zone 2 Puget Lowland 2a Fraser Lowland 2b Eastern Puget Riverine Lowlands 2c San Juan Islands 2d Olympic Rainshadow 2e Eastern Puget Uplands 2f Central Puget Lowland 2g Southern Puget Prairies 2h Cowlitz/Chehalis Foothills 2i Cowlitz/Newaukum Prairie Floodplains 3 Willamette Valley 3a Portland/Vancouver Basin 3b Willamette River and Tributaries Gallery Forest 3c Prairie Terraces 3d Valley Foothills 4 Cascades 4a Western Cascades Lowlands and Valleys 4b Western Cascades Montane Highlands 4c Cascade Crest Montane Forest 4d Cascade Subalpine/Alpine

10 Columbia Plateau 10a Channeled Scablands 10b Loess Islands 10c Umatilla Plateau 10d Okanogan Drift Hills 10e Pleistocene Lake Basins 10f Dissected Loess Uplands 10g Yakima Folds 10h Palouse Hills 10i Deep Loess Foothills 10j Nez Perce Prairie 10k Deschutes/John Day Canyons 10l Lower Snake and Clearwater Canyons 10m Okanogan Valley 11 Blue Mountains 11a John Day/Clarno Uplands 11b John Day/ Clarno Highlands 11c Maritime-Influenced Zone 11d Melange 11e Wallowas/Seven Devils Mountains 11f Canyons and Dissected Highlands 11g Canyons and Dissected Uplands 11h Continental Zone Highlands 11i Continental Zone Foothills 11k Blue Mountain Basins 11l Mesic Forest Zone 11m Subalpine Zone 11n Deschutes River Valley 11o Cold Basins 12 Snake River Plain 12a Treasure Valley12b Lava Fields 12c Camas Prairie12d Dissected Plateaus and Teton Basin 12e Upper Snake River Plain 12f Semiarid Foothills 12g Eastern Snake River Basalt Plains 12h Mountain Home Uplands 12i Magic Valley 12j Unwooded Alkaline Foothills 13 Central Basin and Range 13a Salt Deserts 13b Shadscale-Dominated Saline Basins 13c Sagebrush Basins and Slopes 13d Woodland- and Shrub-Covered Low Mountains 13e High Elevation Forested Mountains 13f Moist Wasatch Front Footslopes 13g Wetlands 13h Salt Desert Shrub Valleys 13i Malad and Cache Valleys 15 Northern Rockies 15a Grave Creek Range-Nine Mile Divide 15b Camas Valley 15c Flathead Valley

15d Tobacco Plains 15e Flathead Hills and Mountains 15f Grassy Potlatch Ridges 15g Western Okanogan Semiarid Foothills 15h High Northern Rockies 15i Clearwater Mountains and Breaks 15j Lower Clearwater Canyons 15k Clark Fork Valley and Mountains 15l Salish Mountains 15m Kootenai Valley 15n Weippe Prairie 15o Coeur d'Alene Metasedimentary Zone 15p St. Joe Schist-Gneiss Zone 15q Purcell-Cabinet-North Bitterroot Mountains 15r Okanogan-Colville Xeric Valleys and Foothills 15s Spokane Valley Outwash Plains 15t Stillwater-Swan Wooded Valley 15u Inland Maritime Foothills and Valleys 15v Northern Idaho Hills and Low Relief Mountains 15w Western Selkirk Maritime Forest 15x Okanogan Highland Dry Forest 15y Granitic Selkirk Mountains 16 Idaho Batholith 16a Eastern Batholith 16b Lochsa Uplands 16c Lochsa-Selway-Clearwater Canyons 16d Dry, Partly Wooded Mountains 16e Glaciated Bitterroot Mountains and Canyons 16f Foothill Shrublands-Grasslands 16g High Glacial Drift-Filled Valleys 16h High Idaho Batholith 16i South Clearwater Forested Mountains 16j Hot Dry Canyons 16k Southern Forested Mountains 17 Middle Rockies 17d Eastern Gravelly Mountains 17e Barren Mountains 17f Crazy Mountains 17g Absaroka-Gallatin-Madison-Bridger Sedimentary Mountains 17h High Elevation Rockland Alpine Zone 17i Absaroka-Gallatin Volcanic Mountains 17j West Yellowstone Valley 17k Lady of the Lake 17l Gneissic-Schistose Forested Mountains 17m Big Horn-Pryor Mountains 17n Cold Valleys 17o Partly Forested Mountains 17p Foothill Potholes 17q Big Snowy-Little Belt Carbonate Mountains 17r Scattered Eastern Igneous-Core Mountains 17s Bitterroot-Frenchtown Valley 17t Limy Foothill Savanna 17u Paradise Valley 17v Big Belt Forested Highlands

17w Townsend Basin 17x Rattlesnake-Blackfoot-South Swan-Northern Garnet-Sapphire Mountains 17y Townsend-Horseshoe-London Sedimentary Hills 17z Tobacco Root Mountains 17aa Dry Intermontane Sagebrush Basins 17ab Dry Gneissic-Schistose-Volcanic Hills 17ac Big Hole 17ad Western Beaverhead Mountains 17ae Forested Beaverhead Mountains 17af Centennial Basin 17ag Pioneer-Anaconda Ranges 17ah Eastern Pioneer Sedimentary Mountains 17ai Elkhorn Mountains-Boulder Batholith 17aj Eastern Divide Mountains 17ak Deer Lodge-Philipsburg-Avon Grassy Intermontane Hills and Valleys 17al Southern Garnet Sedimentary-Volcanic Mountains 17am Flint Creek-Anaconda Mountains 18 Wyoming Basin 18a Rolling Sagebrush Steppe 18b Northern Semiarid Intermontane Basin 18c Wet Valleys 18d Semiarid Bear Hills 19 Wasatch and Uinta Mountains 19a Alpine Zone 19b Uinta Subalpine Forests 19c Mid-Elevation Uinta Mountains 19d Wasatch Montane Zone 19e High Plateaus 19f Semiarid Foothills 19g Mountain Valleys 20 Colorado Plateaus 20g Northern Uinta Basin Slopes 41 Canadian Rockies 41a Northern Front 41b Crestal Alpine-Subalpine Zone 41c Western Canadian Rockies 41d Southern Carbonate Front 41e Flathead Thrust Faulted Carbonate-Rich Mountains 42 Northwestern Glaciated Plains 42j Glaciated Northern Grasslands 42l Sweetgrass Uplands 42m Cherry Patch Moraines 42n Milk River Pothole Upland 42o North Central Brown Glaciated Plains 42p Foothill Grassland 42q Rocky Mountain Front Foothill Potholes 43 Northwestern Great Plains 43l Missouri Breaks Woodland-Scrubland 43m Judith Basin Grassland 43n Central Grassland

43o Unglaciated Montana High Plains 43p Ponderosa Pine Forest-Savanna Hills 43r Pryor-Big Horn Foothills 43s Non-calcareous foothill grassland 43t Smith-Shield Valleys 43u Limy Foothill Grassland 77 North Cascades 77a North Cascades Lowland Forests 77b North Cascades Highland Forests 77c North Cascades Subalpine/Alpine 77d Pasayten/Sawtooth Highlands 77e Okanogan Pine/Fir Hills 77f Chelan Tephra Hills 77g Wenatchee/Chelan Highlands 77h Chiwaukum Hills and Lowlands 77i High Olympics 78 Klamath Mountains 78a Rogue/Illinois Valleys 78b Siskiyou Foothills 78c Umpqua Interior Foothills 78d Serpentine Siskiyous 78e Inland Siskiyous 78f Coastal Siskiyous 78g Klamath River Ridges 80 Northern Basin and Range 80a Dissected High Lava Plateau 80b Sagebrush Steppe- and Woodland-Covered Hills and Low Mountains 80c High Elevation Forests and Shrublands 80d Pluvial Lake Basins 80e High Desert Wetlands 80f Owyhee Uplands and Canyons 80g High Lava Plains 80h Saltbush-Dominated Valleys 80i Sagebrush Steppe Valleys 80j Semiarid Uplands 80k Partly Forested 4e High Southern Cascades Montane Forest 4f Umpqua Cascades 4g Southern Cascades 9 Eastern Cascade Slope and Foothills 9a Yakima Plateau & Slopes 9b Grand Fir Mixed Forest 9c Oak/Conifer Eastern Cascades-Columbia Foothills 9d Ponderosa Pine/Bitterbrush Woodland 9e Pumice Plateau Forest 9f Cold Wet Pumice Plateau Basins 9g Klamath/Goose Lake Warm Wet Basins 9h Fremont Pine/Fir Forest 9i Southern Cascade Slope 9j Klamath Juniper/Ponderosa Pine Woodland

Contact_Person: Data Administrator
Contact_Organization: Geospatial Enterprise Office
Contact_Position: Data Administrator
Address_Type: mailing and physical address
Address: 955 Center St. NE Room 470
City: Salem
State_or_Province: Oregon
Postal_Code: 97301
Contact_Voice_Telephone: 503.378.2166
Hours_of_Service: 8:00am - 5:00pm M-F
Resource_Description: Downloadable Data
The Oregon Geospatial Data Clearinghouse (OGDC), the State of Oregon or any of the data providers cannot accept any responsibility for errors, omissions, or positional accuracy in the digital data or underlying records. There are no warranties, expressed or implied, including the warranty of merchantability or fitness for a particular purpose, accompanying any of these products.
Format_Name: ESRI Shapefile
The files were subsequently compressed using Info-Zip's free version of Zip. This archiving method is compatable with the familiar PKZip. You can download compiled Unzip binaries for many systems from the uunet archive.
Transfer_Size: 2.322
Network_Resource_Name: <http://navigator.state.or.us/sdl/data/shapefile/k250/ecoregion.zip>
Access_Instructions: Access via HTTP with web browser
Format_Name: ARC/Info Export File E00
The files were subsequently compressed using Info-Zip's free version of Zip. This archiving method is compatable with the familiar PKZip. You can download compiled Unzip binaries for many systems from the uunet archive.
Transfer_Size: 1mb
Network_Resource_Name: <http://navigator.state.or.us/sdl/data/e00/k250/ecoregion.zip>
Access_Instructions: Access via HTTP with web browser

Metadata_Date: 20050930
Contact_Organization: Geospatial Enterprise Office
Contact_Person: Data Administrator
Contact_Position: Data Administrator
Address_Type: mailing and physical address
Address: 955 Center St. NE Room 470
City: Salem
State_or_Province: Oregon
Postal_Code: 97301
Contact_Voice_Telephone: 503.378.2166
Contact_Electronic_Mail_Address: gis at gis.state.or.us
Hours_of_Service: 8:00am - 5:00pm M-F
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile

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