eng utf8 dataset dataset State Geospatial Lead BLM, Colorado State Office State Geospatial Lead 303 239-3652

2850 Youngfield Street Lakewood Colorado 80215 US blm_co_info@blm.gov

pointOfContact 2025-11-18 ISO 19139 Geographic Information - Metadata - Implementation Specification 2007 fullPlanarGraph composite 99 26913 EPSG 6.11(3.0.1) 2025-11-18 publication Bureau of Land Management publisher U.S. Department of the Interior, Bureau of Land Management (BLM) originator State Geospatial Lead BLM, Colorado State Office State Geospatial Lead 303 239-3652

Denver Federal Center, Building 40 Lakewood CO 80225 US blm_co_info@blm.gov

pointOfContact mapDigital Original publication: 2009 Once a polygon feature leaves the Pre-designated phase (transitions from Considered to Designated), that polygon will be removed from the ACEC Pre-designated feature class and be placed in the ACEC Designated feature class. 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 Research Natural Areas (RNAs) and Outstanding Natural Areas (ONAs) with in their layer. 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 Surface Management Agency to compare and contrast land holdings within each ACEC. 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. BLM Colorado completed Data Steward BLM Colorado Planning and Environmental Coordinator (303) 239-3865

Denver Federal Center, Building 40 Lakewood CO 80225 US blm_co_info@blm.gov

pointOfContact asNeeded Colorado place Geospatial Management theme Geospatial Management theme ACEC Areas of Critical and Environmental Concern planning theme ACEC Areas of Critical and Environmental Concern planning theme ACEC Areas of Critical and Environmental Concern planning theme Downloadable Data These data are provided by Bureau of Land Management (BLM) 'as is' and might contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. The information contained in these data is dynamic and may change over time. The data are not better than the sources from which they were derived, and both scale and accuracy may vary across the data set. These data might not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to carefully consider the content of the metadata file associated with these data. These data are neither legal documents nor land surveys, and must not be used as such. Official records may be referenced at most BLM offices. Please report any errors in the data to the BLM office from which it was obtained. The BLM should be cited as the data source in any products derived from these data. Any Users wishing to modify the data should describe the types of modifications they have performed. The User should not misrepresent the data, nor imply that changes made were approved or endorsed by BLM. This data may be updated by the BLM without notification. The BLM assumes no responsibility for errors or omissions. No warranty is made by the BLM as to the accuracy, reliability, or completeness of these data for individual use or aggregate use with other data; nor shall the act of distribution to contractors, partners, or beyond, constitute any such warranty for individual or aggregate data use with other data. 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, or for general or scientific purposes, 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 the use or reliance on the geographic data or arising out of the delivery, installation, operation, or support by BLM. None, these data are considered public domain. vector eng utf8 planningCadastre environment boundaries Esri ArcGIS 13.3.4.52636 publication date 2009-01-01 true -109.256314 -104.485368 36.929764 40.98835 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. Enterprise Geodatabase Feature Class State Geospatial Lead BLM Colorado State Geospatial Lead 303-239-3600

Denver Federal Center, Building 40 Lakewood CO 80215 US blm_co_info@blm.gov

distributor 2017-08-22T00:00:00 dataset Please contact the specific state office Point of Contact for additional information on the provenance, history, logical consistency, accuracy and quality of their data. Please contact the specific state office Point of Contact for additional information on the provenance, history, logical consistency, accuracy and quality of their data. Please contact the specific state office Point of Contact for additional information on the provenance, history, logical consistency, accuracy and quality of their data. Please contact the specific state office Point of Contact for additional information on the provenance, history, logical consistency, accuracy and quality of their data. Please contact the specific state office Point of Contact for additional information on the provenance, history, logical consistency, accuracy and quality of their data. New schema applied State Geospatial Lead BLM, Colorado State Office State Geospatial Lead 303 239-3652

Denver Federal Center, Building 40 Lakewood CO 80225 US blm_co_info@blm.gov

pointOfContact These data are provided by Bureau of Land Management (BLM) 'as is' and might contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. The information contained in these data is dynamic and may change over time. The data are not better than the sources from which they were derived, and both scale and accuracy may vary across the data set. These data might not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to carefully consider the content of the metadata file associated with these data. These data are neither legal documents nor land surveys, and must not be used as such. Official records may be referenced at most BLM offices. Please report any errors in the data to the BLM office from which it was obtained. The BLM should be cited as the data source in any products derived from these data. Any Users wishing to modify the data should describe the types of modifications they have performed. The User should not misrepresent the data, nor imply that changes made were approved or endorsed by BLM. This data may be updated by the BLM without notification. None, these data are considered public domain. irregular Last metadata review date: 20251118