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BLM Natl MLRS Mineral Materials

Metadata Updated: September 19, 2025

This dataset contains mineral materials cases derived from Legal Land Descriptions (LLD) contained in the US Bureau of Land Management's, BLM, Mineral and Land Record System(MLRS) and geocoded (mapped) using the Public Land Survey System (PLSS) derived from the most accurate survey data available through BLM Cadastral Survey workforce. Geospatial representations might be missing for some cases that can not be geocoded using the MLRS algorithm. Mineral materials include common varieties of sand, stone,gravel, pumice, pumicite, clay, rock, and semi-precious and non-precious gemstone. This data set contains cases within the case type groupings for mineral materials of exploration permit, nonexclusive sale, exclusive sale, and free use with the case disposition of 'Authorized', 'Pending','Closed', or 'Interim'.Each case is given a data quality score based on how well it mapped.  These can be lumped into seven groups to provide a simplified way to understand the scores.Group 1: Direct PLSS Match. Scores “0”, “1”, “2”, “3” should all have a match to the PLSS data. There are slight differences, but the primary expectation is that these match the PLSS. Group 2: Calculated PLSS Match. Scores “4”, “4.1”, “5”, “6”, “7” and “8” were generated through a process of creating the geometry that is not a direct capture from the PLSS. They represent a best guess based on the underlining PLSS Group 3 – Mapped to Section. Score of “8.1”, “8.2”, “8.3”, “9” and “10” are mapped to the Section for various reasons (refer to log information in data quality field). Group 4- Combination of mapped and unmapped areas. Score of 15 represents a case that has some portions that would map and others that do not. Group 5 – No NLSDB Geometry, Only Attributes. Scores “11”, “12”, “20”, “21” and “22” do not have a match to the PLSS and no geometry is in the NLSDB, and only attributes exist in the data. Group 6 – Mapped to County. Scores of “25” map to the County.Group 7 – Improved Geometry. Scores of “100” are cases that have had their geometry edited by BLM staff using ArcGIS Pro or MLRS bulk upload tool.

Access & Use Information

Public: This dataset is intended for public access and use. License: us-pd

Downloads & Resources

Dates

Metadata Created Date September 11, 2025
Metadata Updated Date September 19, 2025

Metadata Source

Harvested from DOI BLM DCAT-US

Additional Metadata

Resource Type Dataset
Metadata Created Date September 11, 2025
Metadata Updated Date September 19, 2025
Publisher Bureau of Land Management
Maintainer
Identifier https://www.arcgis.com/home/item.html?id=82a91df26a464a7794970f5b2abbef5b&sublayer=0
Data First Published 2024-02-01T15:48:52Z
Data Last Modified 2025-09-18T14:53:59.928Z
Category geospatial
Public Access Level public
Bureau Code 010:04
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://ddi.doi.gov/blm-data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id b0c4ff39-f1cc-434a-988e-17ff01ba73d0
Harvest Source Id ceb4b469-e13a-40f5-af40-5fe065f74ffa
Harvest Source Title DOI BLM DCAT-US
Homepage URL https://gbp-blm-egis.hub.arcgis.com/datasets/BLM-EGIS::blm-natl-mlrs-mineral-materials
License http://www.usa.gov/publicdomain/label/1.0/
Metadata Type geospatial
Old Spatial -168.0944,31.3872,-75.4461,71.3040
Program Code 010:000
Source Datajson Identifier True
Source Hash 5d65a8f398e01459c12216f0dc1fbe965e1880e432809e8be8314655b163c891
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -168.0944, 31.3872, -168.0944, 71.3040, -75.4461, 71.3040, -75.4461, 31.3872, -168.0944, 31.3872}

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