Identification_Information: Citation: Citation_Information: Originator: Omernick, J. M. Publication_Date: 1987 Publication_Time: Unknown Title: Aquatic Ecoregions of the Conterminous United States Geospatial_Data_Presentation_Form: vector digital data Publication_Information: Publication_Place: Reston, Virginia, USA Publisher: U.S. Geological Survey Other_Citation_Details: Information contained in this dataset were manipulated to produce Figure 1.4, Chapter 1, p. 19, in Connelly, J. W., S. T. Knick, M. A. Schroeder, and S. J. Silver. 2004. Conservation assessment of Greater Sage-grouse and sagebrush habitats. Western Association of Fish and Wildlife Agencies. Unpublished Report. Cheyenne, Wyoming. Online_Linkage: http://water.usgs.gov/lookup/getcover?ecoregion Description: Abstract: Ecoregions are based on perceived patterns of a combination of causal and integrative factors including land use, land surface form, potential natural vegetation, and soils (Omernik, 1987). Purpose: This coverage is intended for national-level studies of water resources. Specifically, we used these data as part of the inter-agency Sage Grouse Rangwide Conservation Assessment. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 19911217 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned. Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -127.095532 East_Bounding_Coordinate: -65.707198 North_Bounding_Coordinate: 55.372585 South_Bounding_Coordinate: 20.998989 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Omernik Theme_Keyword: Omernik's Theme_Keyword: Aquatic Theme_Keyword: Ecoregion Theme_Keyword: Ecoregions Place: Place_Keyword_Thesaurus: None Place_Keyword: United States Place_Keyword: USA Place_Keyword: US Place_Keyword: Conterminous Access_Constraints: None Use_Constraints: None Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Cara Meinke Contact_Organization: USGS-FRESC Snake River Field Station Contact_Position: Wildlife Biologist Contact_Address: Address_Type: mailing and physical address Address: 970 Lusk St. City: Boise State_or_Province: ID Postal_Code: 83706 Contact_Voice_Telephone: 208-426-2696 Contact_Facsimile_Telephone: 208-426-5210 Contact_Electronic_Mail_Address: cara_meinke@usgs.gov Native_Data_Set_Environment: Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 8.3.0.800 Data_Quality_Information: Logical_Consistency_Report: Dependent upon source information. Completeness_Report: Dependent upon source information. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Omernik, J. M Publication_Date: 1987 Title: Aquatic ecoregions of the conterminous United States Series_Information: Series_Name: Annals of the Association of American Geographers Issue_Identification: 77:118-125 Publication_Information: Publication_Place: unknown Publisher: Association of American Geographers Source_Scale_Denominator: 7500000 Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1987 Source_Currentness_Reference: publication date Process_Step: Process_Step: Process_Description: Metadata imported. Source_Used_Citation_Abbreviation: C:\DOCUME~1\birdnerd\LOCALS~1\Temp\xml4B.tmp Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: G-polygon Point_and_Vector_Object_Count: 78 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Albers Conical Equal Area Albers_Conical_Equal_Area: Standard_Parallel: 38.000000 Standard_Parallel: 41.000000 Longitude_of_Central_Meridian: -114.000000 Latitude_of_Projection_Origin: 34.000000 False_Easting: 0.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.008192 Ordinate_Resolution: 0.008192 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.400000 Denominator_of_Flattening_Ratio: 294.978698 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Omerniks_ecoregions_sgca Entity_Type_Definition: Attributes of Omerniks_ecoregions_sgca Entity_Type_Definition_Source: ESRI Attribute: Attribute_Label: FID Attribute_Definition: Internal feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: Shape Attribute_Definition: Feature geometry. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Coordinates defining the features. Attribute: Attribute_Label: ECOREGION Attribute_Definition: Ecoregion code Attribute_Definition_Source: Omernik (1987) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Various Enumerated_Domain_Value_Definition: see Overview Description Enumerated_Domain_Value_Definition_Source: Omernik (1987); see Source Information Overview_Description: Entity_and_Attribute_Overview: Ecoregion reference: Omernik, J.M. 1987. Aquatic ecoregions of the conterminous United States Annals of the Association of American Geographers. 77:118-125 (map scale 1:7,500,000) The definitions of the ECOREGION codes are: 1 COAST RANGE 2 PUGET LOWLAND 3 WILLAMETTE VALLEY 4 CASCADES 5 SIERRA NEVADA 6 SOUTHERN AND CENTRAL CA PLAINS AND HILLS 7 CENTRAL CA VALLEY 8 SOUTHERN CA MOUNTAINS 9 EASTERN CASCADES SLOPES AND FOOTHILLS 10 COLUMBIA BASIN 11 BLUE MOUNTAINS 12 SNAKE RIVER BASIN / HIGH DESERT 13 NORTHERN BASIN AND RANGE 14 SOUTHERN BASIN AND RANGE 15 NORTHERN ROCKIES 16 MONTANA VALLEY AND FOOTHILL PRAIRIES 17 MIDDLE ROCKIES 18 WYOMING BASIN 19 WASATCH AND UINTA MOUNTAINS 20 COLORADO PLATEAUS 21 SOUTHERN ROCKIES 22 ARIZONA / NEW MEXICO PLATEAU 23 ARIZONA / NEW MEXICO MOUNTAINS 24 SOUTHERN DESERTS 25 WESTERN HIGH PLAINS 26 SOUTHWESTERN TABLELANDS 27 CENTRAL GREAT PLAINS 28 FLINT HILLS 29 CENTRAL OKLAHOMA / TEXAS PLAINS 30 CENTRAL TEXAS PLATEAU 31 SOUTHERN TEXAS PLAINS 32 TEXAS BLACKLAND PRAIRIES 33 EAST CENTRAL TEXAS PLAINS 34 WESTERN GULF COASTAL PLAIN 35 SOUTH CENTRAL PLAINS 36 OUACHITA MOUNTAINS 37 ARKANSAS VALLEY 38 BOSTON MOUNTAINS 39 OZARK HIGHLANDS 40 CENTRAL IRREGULAR PLAINS 41 NORTHERN MONTANA GLACIATED PLAINS 42 NORTHWESTERN GLACIATED PLAINS 43 NORTHWESTERN GREAT PLAINS 44 NEBRASKA SAND HILLS 45 NORTHEASTERN GREAT PLAINS 46 NORTHERN GLACIATED PLAINS 47 WESTERN CORN BELT PLAINS 48 RED RIVER VALLEY 49 NORTHERN MINNESOTA WETLANDS 50 NORTHERN LAKES AND FORESTS 51 NORTH CENTRAL HARDWOOD FORESTS 52 DRIFTLESS AREA 53 SOUTHEASTERN WISCONSIN TILL PLAINS 54 CENTRAL CORN BELT PLAINS 55 EASTERN CORN BELT PLAINS 56 S MICHIGAN / N INDIANA TILL PLAINS 57 HURON / ERIE LAKE PLAIN 58 NORTHEASTERN HIGHLANDS 59 NORTHEASTERN COASTAL ZONE 60 NORTHERN APPALACHIAN PLATEAU AND UPLANDS 61 ERIE / ONTARIO LAKE PLAIN 62 NORTH CENTRAL APPALACHIANS 63 MIDDLE ATLANTIC COASTAL PLAIN 64 NORTHERN PIEDMONT 65 SOUTHEASTERN PLAINS 66 BLUE RIDGE MOUNTAINS 67 CENTRAL APPALACHIAN RIDGES AND VALLEYS 68 SOUTHWESTERN APPALACHIANS 69 CENTRAL APPALACHIANS 70 WESTERN ALLEGHENY PLATEAU 71 INTERIOR PLATEAU 72 INTERIOR RIVER LOWLAND 73 MISSISSIPPI ALLUVIAL PLAIN 74 MISSISSIPPI VALLEY LOESS PLAINS 75 SOUTHERN COASTAL PLAIN 76 SOUTHERN FLORIDA COASTAL PLAIN Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: USGS, Snake River Field Station, GIS Laboratory Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 970 Lusk St City: Boise State_or_Province: ID Postal_Code: 83706 Country: USA Contact_Voice_Telephone: 208-426-5204 Contact_Facsimile_Telephone: 208-426-5210 Contact_Electronic_Mail_Address: tom_zarriello@usgs.gov Resource_Description: Downloadable Data Distribution_Liability: We make every effort to provide and maintain accurate, complete, usable, and timely information on our web sites. However, some USGS data and information accessed through these pages may, of necessity, be preliminary in nature and presented prior to final review and approval by the Director of the USGS. These data and information are provided with the understanding that they are not guaranteed to be correct or complete. Users are cautioned to consider carefully the provisional nature of these data and information before using them for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences. Conclusions drawn from, or actions undertaken on the basis of, such data and information are the sole responsibility of the user. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: zipped shapefile File_Decompression_Technique: WinZip Transfer_Size: 3.931 Digital_Transfer_Option: Online_Option: Online_Computer_and_Operating_System: http://sagemap.wr.usgs.gov/ Online_Option: Online_Computer_and_Operating_System: http://prairiemap.wr.usgs.gov/regional/USGS/CRPacres_county.zip Fees: none Ordering_Instructions: Go to SAGEMAP (http://sagemap.wr.usgs.gov) or PRAIRIEMAP (http://prairiemap.wr.usgs.gov) and search on 'regional' and 'USGS'. Metadata_Reference_Information: Metadata_Date: 20040809 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Cara Meinke Contact_Organization: USGS, Snake River Field Station Contact_Position: Wildlife Biologist (GIS) Contact_Address: Address_Type: mailing and physical address Address: 970 Lusk St. City: Boise State_or_Province: ID Postal_Code: 83706 Country: USA Contact_Voice_Telephone: 208-426-2696 Contact_Facsimile_Telephone: 208-426-5210 Contact_Electronic_Mail_Address: cmeinke@usgs.gov Hours_of_Service: 8 - 5 Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Access_Constraints: none Metadata_Use_Constraints: none Metadata_Security_Information: Metadata_Security_Classification: Unclassified Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile