U.S. DEPARTMENT OF THE INTERIORBUREAU OF LAND MANAGEMENT
BLM Colorado
 
Areas of Critical and Environmental Concern
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Areas of Critical and Environmental Concern

 

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: BLM Colorado State Office, Dave Taylor (editor)
Publication_Date: Dec. 26, 2012 
Title: co_acec
Edition: 2nd
Geospatial_Data_Presentation_Form: vector digital data
Description:
Abstract:
This data set consist of digital data describing (ACEC) Areas of Critical and Environmental Concern for Public Lands in the State of Colorado. ACECs are designated by decisions made during BLM Resource Management Planning. Existing ACECs have a Resouce value tied to them. An example of these resources would be: Threatened and Endangered Plants.

Other areas of concern have also been captured within this theme. When the users opens up the attribute table for this theme the user will notice ACEC follows most of names for each area. Some BLM field offices also included RNAs and ONAs with in their layer. ONAs are... Outstanding Natural Areas and RNAs are... Research Natural Area

The data set was compiled from the most current data collected from the BLM Colorado Field Offices. In some cases data boundaries were snapped to BLMs Geographic Coordinate Data Base (GCDB). The GCDB is a statewide survey grid that BLM bases land boundaries on. Also in some cases within the ACECs outer boundary land holdings other than BLM have been cut out to show these Land Patterns, In other cases it has not. It is suggeted that the user of this data also download BLMs most current Land Ownership Layer to compare and contrast land holdings within each ACEC.

Purpose:
To illustrate Areas of Critical and Environmental Concern (ACEC) for the State of Colorado and for BLM (RMP) Resource Management Plan analysis and decision making.
Supplemental_Information:
Original data was located at each BLM Field Office in Colorado. GIS specialist at BLM Colorado State Office (CSO) quality checked data and Merged the individual Arcinfo "layers" into the a Statewide layer.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: unknown
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -109.156769
East_Bounding_Coordinate: -104.532997
North_Bounding_Coordinate: 40.967908
South_Bounding_Coordinate: 36.934916
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: ACEC
Theme_Keyword: Areas of Critical and Environmental Concern
Theme_Keyword: Threatened and Endangered
Theme_Keyword: Species
Theme_Keyword: Plants
Theme_Keyword: Animals
Theme_Keyword: Paleontology
Theme_Keyword: Research Natural Areas (RNAs)
Theme_Keyword: Outstanding Natural Areas (ONAs)
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Colorado
Access_Constraints: None
Use_Constraints:
Any hardcopies utilizing these data sets shall clearly indicate their source. If the licensee has modified the data in any way they are obligated to describe the types of modifications they have performed on the hardcopy map. Licensee specifically agrees not to misrepresent these data sets, nor to imply that changes they made were approved by the Bureau of Land Management.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Dave Taylor
Contact_Organization: BLM Colorado State Office
Contact_Position: GIS Specialist
Contact_Address:
Address_Type: mailing and physical address
Address: 2850 Youngfield Street
City: Lakewood
State_or_Province: Colorado
Postal_Code: 80215
Country: USA
Contact_Voice_Telephone: 303 239-3652
Data_Set_Credit:
Each BLM Colorado Field Office Contributed. BLM State Office GIS Specialist merged final layer together.
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.722
Cross_Reference:
Citation_Information:
Series_Information:
Series_Name: BLM Colorado Statewide Geospatial Database
Issue_Identification:
co_acec_may2006.shp = The name of the shapefile described in this metadata
Publication_Information:
Publication_Place: Lakewood Colorado
Publisher: BLM Colorado State Office


Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: Attributes were verified with each field office.
Logical_Consistency_Report: Polygon Topology Present. Checked for topology errors
Completeness_Report:
The theme covers the state of Colorado. Placement of some polygons may be incorrect. Data was collected at the BLM State Office during May 2006
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Referneced to USGS base map; however, does not register perfectly, because data was digitized off of paper quadrangle. In some cases data has been rectified to current GCDB survey grid.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: BLM Colorado
Publication_Date: Dec. 26,2012 
Title: ACECs
Edition: 2nd
Source_Scale_Denominator: 24k USGS Quads and GCDB Survey Grid
Type_of_Source_Media: Paper and Digital Computations
Source_Citation_Abbreviation: None
Source_Contribution: 2006 BLM Colorado Field Offices
Process_Step:
Process_Description:
Individual 24K coverages merged into Statewide coverage (QA and QC applied). Some data edits occured on the original arcinfo "coverages". The ACEC polygon coverage located in the BLM Royal Gorge RA had many dangle and label errors when received at the State Office. These errors were cleaned up at the State Office before mapjoin.
Process_Date: 19980816
Process_Step:
Process_Description:
Coverage converted into a Arcview Shapefile. Updated ACECs boundaries were collected from BLM Colorado Field Offices in various formats. The old data was combined with the new data sources to produce a new and better representation of ACECs as of May 2006.
Process_Date: 20060522


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: 215


Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 13
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -105.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.001024
Ordinate_Resolution: 0.001024
Planar_Distance_Units: meters
Geodetic_Model:
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_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: co_acec
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: LABEL
Attribute:
Attribute_Label: Perimeter
Attribute:
Attribute_Label: Area
Attribute:
Attribute_Label: Acres
Overview_Description:
Entity_and_Attribute_Overview:
Each ACEC consist of a Name followed by (in most cases) ACEC. In some cases the Name is followed by... ONA or RNA.
Entity_and_Attribute_Detail_Citation:
ACEC = Areas of Critical and Environmental Concern ONA = Outstanding Natural Area RNA = Research Natural Area


Distribution_Information:
Resource_Description: Downloadable Data
Distribution_Liability:
The Bureau of Land Management (BLM) provides these geographic data "as is." BLM makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. BLM further makes no warranties, either expressed or implied as to any other matter whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on computers of BLM, no warranty, expressed or implied, is made by BLM regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty.

In no event shall the BLM have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data or arising out of the delivery, installation, operation, or support by BLM.

Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 0.388


Metadata_Reference_Information:
Metadata_Date: 20060522
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Adrian Caulfield
Contact_Organization: BLM Colorado State Office
Contact_Position: State Data Administrator
Contact_Address:
Address_Type: mailing and physical address
Address: 2850 Youngfield Street
City: Lakewood
State_or_Province: Colorado
Postal_Code: 80215
Contact_Voice_Telephone: 303 239-3941
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile

Generated by mp version 2.8.6 on Mon May 22 14:25:46 2006


 
Last updated: 04-16-2014