utf8 dataset dataset Bureau of Land Management (BLM), Alaska State Office State Data Administrator (907) 271-3545

222 West 7th Avenue, Stop 13 Anchorage Alaska 99513 US s05marti@blm.gov

pointOfContact 2022-09-27 ISO 19139 Geographic Information - Metadata - Implementation Specification 2007 composite 4358 2022-08-29 publication U.S. Department of the Interior, Bureau of Land Management (BLM) originator U.S. Department of Interior, Bureau of Land Management (BLM), Alaska State Office originator Bureau of Land Management publisher mapDigital The ANCSA 17(b) Easement dataset represents spatial location and basic information about 17(b) easements within the state of Alaska. ANCSA 17(b) easements are rights reserved to the United States in accordance with 43 CFR 2650.4-7 Public easements. They are reserved to provide access to public lands or major waterways. Most often, these reservations are transportation easements including: 60-foot wide existing roads, 100-foot wide proposed roads, and 25- and 50-foot existing and proposed trails. Site easements and miscellaneous easement may include aircraft landings, vehicle parking, temporary camping, and loading and unloading areas. These rights are reserved when the BLM conveys land to a Native corporation under the Alaska Native Claims Settlement Act (ANCSA). These data can be used to assist the public in understanding where and how they can access public lands across conveyed native lands. Agencies and government entities can utilize the data for on-the-ground management of the easements. Data may also be used for land planning. This data may not accurately represent physical features and should not be used as such. Bureau of Land Management (BLM), Alaska underDevelopment Katherine VanMassenhove Bureau of Land Management (BLM), Alaska State Office Realty Specialist (907) 271-4216

222 W 7th Ave #13 Anchorage Alaska 99513 US kvanmassenhove@blm.gov

pointOfContact Bureau of Land Management (BLM), Alaska State Office State Data Administrator

222 West 7th Avenue, Stop 13 Anchorage AK 99513 US jlotz@blm.gov

pointOfContact asNeeded Alaska place State of Alaska place Authorization Disturbance Geospatial Management Recreation Wildlife theme Authorization Disturbance Geospatial Management Recreation Wildlife theme Authorization Disturbance Geospatial Management Recreation Wildlife theme Authorization Disturbance Geospatial Management Recreation Wildlife theme Authorization Disturbance Geospatial Management Recreation Wildlife theme Authorization Disturbance Geospatial Management Recreation Wildlife theme 17(b) access administrative Alaska Native Claims Settlement Act allotment ANCSA conveyance Easement encumbrance public realty theme 17(b) access administrative Alaska Native Claims Settlement Act allotment ANCSA conveyance Easement encumbrance public realty theme 17(b) access administrative Alaska Native Claims Settlement Act allotment ANCSA conveyance Easement encumbrance public realty theme 17(b) access administrative Alaska Native Claims Settlement Act allotment ANCSA conveyance Easement encumbrance public realty theme 17(b) access administrative Alaska Native Claims Settlement Act allotment ANCSA conveyance Easement encumbrance public realty theme 17(b) access administrative Alaska Native Claims Settlement Act allotment ANCSA conveyance Easement encumbrance public realty theme 17(b) access administrative Alaska Native Claims Settlement Act allotment ANCSA conveyance Easement encumbrance public realty theme 17(b) access administrative Alaska Native Claims Settlement Act allotment ANCSA conveyance Easement encumbrance public realty theme 17(b) access administrative Alaska Native Claims Settlement Act allotment ANCSA conveyance Easement encumbrance public realty theme 17(b) access administrative Alaska Native Claims Settlement Act allotment ANCSA conveyance Easement encumbrance public realty theme 17(b) access administrative Alaska Native Claims Settlement Act allotment ANCSA conveyance Easement encumbrance public realty theme 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. vector utf8 location transportation Version 6.2 (Build 9200) ; Esri ArcGIS 10.5.1.7333 true -179 -129.9 51.3 71.4 publication date 2019-10-31 -179 -129.9 51.3 71.4 The Easement_17b feature dataset highlights access to BLM administered lands surrounded/isolated by native lands. They are physical entities such as roads, trails and power lines. Each Easement is described within the conveyance document associated with the action. Historically, the official record for delineating 17(b) Easements was drawn on USGS Quadrangle maps. (https://sdms.ak.blm.gov/scanned_images/esmtindex.html). Bureau of Land Management (BLM), Alaska State Office State Data Administrator (907) 271-3545

222 West 7th Avenue, Stop 13 Anchorage Alaska 99513 US s05marti@blm.gov

distributor dataset Attributes are populated through a manual process that requires cross referencing BLM Alaska legal documents. This dataset is transitory and have varying degrees of accuracy. Accuracy is reviewed and improved, if possible, through coordination with the land owner over which lands the easement is reserved. ANCSA 17(b) easements have been reserved since the early 1970s on large scale USGS Quad Maps, often with felt-tip marker drawn to depict 25′ and 50′ existing and proposed trails, 60′ existing roads, and 100′ proposed roads. The nomination and reservation process did not require the easements to be surveyed, nor did it require on the ground location. Because the purpose of the easement was to preserve public access to public lands after lands have been conveyed out of Federal ownership, there were many instances where easements were reserved for a proposed trail or road to be built. There are many instances where the easement was reserved in a location that does not properly depict the location of the trail or road the easement intended to reserve the right to access. When the easement does not align with the trail or road where the access is occurring, the users of the road and trail are technically in trespass on the Native Corporation lands. All .tif files have been georeferenced then mosaicked for statewide coverage (were applicable) for ANCSA 17(b) Easement coverage prior to the digitization process. Source input layers were USGS Quad maps with hand drawn or AutoCAD ANCSA 17(b) Easement lines that were converted to .tif files. The easement lines were then digitized in the ArcGIS Environment using the centerline at a scale of 1:3000 with coverage over the entire State of Alaska were applicable. The user must understand that while the digitized line now has a spatial reference, it may not be were the trail is in use on the ground. No alteration of the digitized line may occur unless a MOA with the land owner is processed and approved by BLM Alaska. The horizontal accuracy is contingent upon the quality of the georeferenced .tif input files. This dataset is transitory and have varying degrees of accuracy. Accuracy is reviewed and improved, if possible, through coordination with the land owner over which lands the easement is reserved. ANCSA 17(b) easements have been reserved since the early 1970s on large scale USGS Quad Maps, often with felt-tip marker drawn to depict 25′ and 50′ existing and proposed trails, and 60′ existing roads, and 100′ proposed roads. The nomination and reservation process did not require the easements to be surveyed, nor did it require on the ground location. Because the purpose of the easement was to preserve public access to public lands after lands have been conveyed out of Federal ownership, there were many instances where easements are reserved for a proposed trail or road to be built. Due to limitations in map making abilities, there are many instances where the easement was reserved in a location that does not properly depict the location of the trail or road the easement intended to reserve the right to access. When the easement does not align with the trail or road where the access is occurring, the users of the road and trail are technically in trespass on the Native Corporation lands. Resolution to this issue will be one of two ways depending on how far off the depiction of the easement is from the actual location of the access. If the easement depiction of the map changes, but the description of the easement in the Interim Conveyance (IC) or patent remains unchanged, then the easement location can be adjusted with a Recordable Memorandum of Agreement between the BLM, the Land Owner, and the Administering Agency (if applicable). If the easement description of the IC or patent is altered by a change in the map depiction, either by a legal land description change (for example the trail started in Sec. 1 and now starts in Sec. 2), or by a topographical description change (for example an easement goes to the west of the mountain, and now runs to the east), an easement exchange will be required. This is a formal title action that requires the BLM to follow all acquisition requirements in accepting the donation of a new easement in order for the termination of the existing easement. When easement corrections are made, thru either the MOA process or the easement exchange, the level of accuracy of the easements will greatly increase. As GPS data becomes available, this data will be reviewed to determine if the line work mirrors the reserved easement and the feature’s Coord_Source attribute will reflect that the data was acquired via GPS. If the GPS line does not mirror the easement reserved, a MOA or easement exchange is required prior to altering the line work to reflect the more accurate data collection method. This dataset will never be complete. Over time, the land entitlement will be met for Native Corporations and the ability to initially reserve easements at conveyance will end. However, there will continue to be work after the lands convey to address easement usability and compatibility needs. 2019-04-23T00:00:00 Bureau of Land Management (BLM), Alaska State Office State Data Administrator (907) 271-3545

222 West 7th Avenue, Stop 13 Anchorage Alaska 99513 US s05marti@blm.gov

processor unknown Last metadata review date: 20191101