<gco:CharacterString>BLM Colorado Surface Management Agency</gco:CharacterString>

eng utf8 dataset dataset State Geospatial Lead Bureau of Land Management, Colorado State Office State Geospatial Lead (303) 239-3600

PO Box 151029 Lakewood CO 80215 U.S.A. blm_co_info@blm.gov

pointOfContact 2025-09-10 ISO 19139 Geographic Information - Metadata - Implementation Specification 2007 geometryOnly composite 21163

EPSG 6.11(3.0.1) <gco:CharacterString>BLM Colorado Surface Management Agency</gco:CharacterString> 2022-01-05 publication U.S. Department of the Interior, Bureau of Land Management (BLM) originator U.S. Department of Interior, Bureau of Land Management (BLM) originator Bureau of Land Management

Lakewood, CO

publisher mapDigital BLM Colorado State Wide Geospatial Database SDE Publication DB lst_conflated The original data set consisted of a merge of 56 Colorado 1:100,000 scale land ownership maps that were digitized at the FWS. The hard copy maps/source materials were provided to the FWS by the BLM Colorado State Office. Data was originally obtained by the BLM is USGS DLG format. Individual quads were imported into the Automated Digitizing System (ADS) and reattributed using the most current source material at the time of conversion. Time was around 1994. At this time the BLM Colorado State Office was still on the Prime computers and this was where the data set resided in a converted MOSS format. MOSS files were then converted to UNIX Arc Info and merged into this data set. Data were then integrated with 1:24,000 scale land ownership data that were gathered from BLM Colorado field offices through out the state where available. Data set now is a mix of scale, tolerances, and vintage, ranging from 1994 to 2014, line work ranging from GCDB to 24K to 100K map scale/land grid source. See "progress reports" in this metadata for more information on this subject. Also see "attribute section" for explaination of line work accuracy/vintage. This data set is a result of compiling differing source materials of various vintages. Source material examples used to create and maintain dataset include: BLM 100k Surface Map Publications, Master Title Plats, Public Land Survey GIS Data (cadnsdi v.2.0), Field Office GIS Data, Compiled 24k USGS Maps, and Land Records. Ongoing updates are made. NOTE: This dataset is subject to update daily. Process Steps and Publication Dates are not reflected in this metadata documentation. The purpose of these data is to provide a reasonably accurate depiction of who or what agency manages the surface of a given area of land. The data can be used for small scale (1:24,000 and smaller) analysis, cartographic products, GIS display, spatial feature discovery, spatial relationships (Man Made or Natural), These data support and assist in management decisions and planning. BLM, Colorado completed Data Steward Bureau of Land Management Lands and Realty Branch Chief 303-239-3600

PO Box 151029 Lakewood CO 80215 US blm_co_info@blm.gov

pointOfContact Data Steward Bureau of Land Management Lands and Realty Branch Chief 303-239-3600

Denver Federal Center, Building 40 Lakewood CO 80215 U.S.A. blm_co_info@blm.gov

pointOfContact quarterly Colorado place <gco:CharacterString>BLM-STATE</gco:CharacterString> Geospatial Management theme <gco:CharacterString>BLM-THEME</gco:CharacterString> Geospatial Management theme <gco:CharacterString>BLM-THEME</gco:CharacterString> BLM Bureau of Land Management Department of Interior DOI land status LST ownership SMA surface management theme <gco:CharacterString>NONE</gco:CharacterString> BLM Bureau of Land Management Department of Interior DOI land status LST ownership SMA surface management theme <gco:CharacterString>NONE</gco:CharacterString> BLM Bureau of Land Management Department of Interior DOI land status LST ownership SMA surface management theme <gco:CharacterString>NONE</gco:CharacterString> BLM Bureau of Land Management Department of Interior DOI land status LST ownership SMA surface management theme <gco:CharacterString>NONE</gco:CharacterString> BLM Bureau of Land Management Department of Interior DOI land status LST ownership SMA surface management theme <gco:CharacterString>NONE</gco:CharacterString> BLM Bureau of Land Management Department of Interior DOI land status LST ownership SMA surface management theme <gco:CharacterString>NONE</gco:CharacterString> BLM Bureau of Land Management Department of Interior DOI land status LST ownership SMA surface management theme <gco:CharacterString>NONE</gco:CharacterString> BLM Bureau of Land Management Department of Interior DOI land status LST ownership SMA surface management theme <gco:CharacterString>NONE</gco:CharacterString> BLM Bureau of Land Management Department of Interior DOI land status LST ownership SMA surface management theme <gco:CharacterString>NONE</gco:CharacterString> 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. otherRestrictions None, these data are considered public domain. <gco:CharacterString>Statewide Land Status Map (GCDB, 24k, 100k) version</gco:CharacterString> 2002-05-28 publication 1st United States Department of the Interior, Fish and Wildlife Service, National Ecology Research Center in cooperation with the Bureau of Land Management, Colorado State Office, Geosciences Team. originator BLM Colorado State Office

Lakewood, Colorado

publisher mapHardcopy Statewide GIS Theme lst24k_100k crossReference vector eng utf8 boundaries planningCadastre Esri ArcGIS 10.4.1.3497 true -109.279635 -101.868832 36.926323 41.071909 publication date 2024-05-20 true -109.279623 -101.868832 36.925859 41.071909 A published revision of the Department Manuals Part 305: Departmental Science Effects, Chapter 3: Integrity of Scientific and Scholarly Activities (305 DM 3), effective December 16, 2014, is available online at http://elips.doi.gov/ELIPS/DocView.aspx?id=4056. Scholarly information considered in Departmental decision making must be robust, of the highest quality, and the result of as rigorous scientific and scholarly processes as can be achieved. Most importantly, it must be trustworthy. This policy helps us to achieve that standard (http://www.doi.gov/scientificintegrity/index.cfm) Enterprise Geodatabase Feature Class State Geospatial Lead BLM Colorado State Office State Geospatial Lead 303-239-3600

PO Box 151029 Lakewood CO 80215 U.S.A. BLM_CO_GIS_Info@blm.gov

distributor dataset Attribute accuracy is tested by manual comparisons of the source with hard copy plots and/or symbolized display of the Land Status on a interactive computer graphic system. Data was also compared to Master Title Plats and survey notes at the Bureau of Land Management. Polygon and Arc-Node topology present. Coverage checked and passed for topology errors. Data completeness for this data set reflects the content of the source graphic, MTPs, conversations with other land agencies, and survey notes. Features may have been eliminated or generalized on the source graphic due to scale and legibility constraints. Below is the original list of 100k Quads digitized for this project along with the Source date of the source material. Also listed are the dates, file names and descriptive name details of the field data inserted into this statewide coverage. Quad Name Source Data 1. Alamosa 1988 2. Antonito 1987 3. Bailey 1985 4. Blanca Peak 1983 5. Bonney Reservoir 1978 6. Burlington 1982 7. Canon City 1988 8. Canyon of Ladore 1990 9. Carbondale 1988 10. Castle Rock 1984 11. Cheyenne Wells 1987 12. Colorado Springs 1982 13. Cortez 1984 14. Craig 1990 15. Del Norte 1984 16. Delta 1989 17. Denver East 1985 18. Denver West 1986 19. Douglas Pass 1989 20. Dove Creek 1988 21. Durrango 1984 22. Estes Park 1985 23. Eston 1983 24. Fort Collins 1988 25. Fort Morgan 1978 26. Glenwood Springs 1988 27. Grand Junction 1990 28. Greeley 1990 29. Gunnison 1989 30. Julesburg 1978 31. Karval 1987 32. Kim 1984 33. La Junta 1984 34. Lamar 1976 35. Las Animas 1990 36. Last Chance 1978 37. Leadville 1989 38. Limon 1985 39. Meeker 1990 40. Montrose 1988 41. Nucla 1989 42. Paonia 1989 43. Pikes Peak 1985 44. Pueblo 1982 45. Rangely 1989 46. Saguache 1988 47. Silverton 1990 48. Springfield 1975 49. Steamboat Springs 1988 50. Sterling 1976 51. Trinidad 1988 52. Two Buttes Reservoir 1975 53. Vail 1989 54. Walden 1989 55. Walsenburg 1983 56. Wray 1982 Below is the list of data inserted into this theme from BLM field offices. File Name mm/yy BLM Field Office lst100k 04/94 BLM Colorado State Office gj_lst 05/02 BLM Grand Junction Office gs_lst 04/02 BLM Glenwood Springs Office kr_lst 10/00 BLM Kremmling Office ls_lst 07/00 BLM Craig Office wr_lst 02/00 BLM Meeker Office mar_lst 05/02 BLM Montrose Office mr_lst 10/00 BLM Montrose Office rglst 06/01 BLM Canon City Office Referenced to USGS base map; however, does not register perfectly, because data were digitized off of paper quadrangle. In some cases data is referenced to GCDB Land Grid Published by BLM. Original coverage were "lst100k" (see metadata on this coverage for process steps to this point). Editor for this coverage used BLM field office land ownership data and used the "erase" command with the "net" option in ArcInfo to create holes in the original data. Editor then used "mapjoin" with the "net" option to join the field office data to the statewide data. Editor then used the "dissolve" command with the "net" option to dissolve arcs between common attributed polygons. Attribute schema had to be modified in the polygon table so land ownership attributes would have the same field names, field definitions, and attribute names. Final coverage is a combination of many different BLM field office sources. The arc table were modified to maintain a feature base accuracy source attribute for each of the arcs in the final coverage. 2002-05-28T00:00:00 State Geospatial Lead Bureau of Land Management, Colorado State Office State Geospatial Lead (303) 239-3600

2850 Youngfield Street Lakewood CO 80215 U.S.A. blm_co_info@blm.gov

processor Data converted from ArcInfo coverage to ArcSDE 8.3 Geodatabase. Domain values added for polygon data and arcs. Topology Rules set in the geodatabase and data was validated. Update editing continued in the SDE environment. During the editing and update cycle the editor keeped track of the boundaries by attributing the arcs with line source/feature level metadata. Topology rules were set so if a polygon boundary moved the arc moved with it. Also during this update cycle the editor incorporated many state land board features on a statewide bases. 2004-10-30T00:00:00 State Geospatial Lead BLM Colorado State Office State Geospatial Lead 303 239-3600

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

processor Data was frozen during this time period, and handed over to a private contractor. The contarctor was tasked to conflate the data to BLM's Geographic Coordinate Data Base (GCDB). Because of the difficulty of maintaining topology movement between the arcs and the polygons the contractor did not maintain the feature level metadata for the arcs. Contractor provided the data back to BLM Colorado with polygon topology only in the form on a personal geodatabase. Data was conflated to GCDB survey grid dated 20051130 2005-11-30T00:00:00 State Geospatial Lead BLM Colorado State Office State Geospatial Lead 303 239-3600

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

processor A minumum data quality check and validation from contractor, moved into a Arcinfo coverage model, build command was run on data. Data is clean to this point with no topology errors and ready to move data back into a SDE geodatabase. Data can also be exported to a shape file so it can be served to the public and other interested parties. 2006-01-03T00:00:00 State Geospatial Lead BLM Colorado State Office State Geospatial Lead 303 239-3600

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

processor Attribute schema for polygons and lines were re-evaluated and changed to reflect national standards that the BLMs NILS office uses for their SMA layer. 2006-06-15T00:00:00 State Geospatial Lead BLM Colorado State Geospatial Lead 303-239-3600