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    • BLM National PFYC Potential Fossil Yield Classification Geologic Formation AZ Polygons

    Metadata Updated: March 3, 2026

    Geologic coverage. Contains polygon boundaries between mappable geologic units and polygon codes for the mappable geologic units. Contains values for the Potential Fossil Yield Classification (PFYC) for ranking the potential of a geologic unit to produce scientifically significant fossils. Also contains fields for geologic ages and sort codes for sorting the units by time. Detailed documentation on the mapped units can be found in the accompanying state generated reports. Additional fields were added to the source data including earliest geologic age, latest geologic age, PFYC justification, PFYC rank (1-5), and a coded representation for the standardized BLM coloring scheme for PFYC maps.

    Access & Use Information

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

    Downloads & Resources

    Dates

    Metadata Created Date September 25, 2025
    Metadata Updated Date March 3, 2026

    Metadata Source

    Harvested from DOI BLM DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date September 25, 2025
    Metadata Updated Date March 3, 2026
    Publisher Bureau of Land Management
    Maintainer
    Identifier https://blm-egis.maps.arcgis.com/home/item.html?id=96114775d30d45ab89fd56640e5039e8
    Data First Published 2025-08-22T18:00:55Z
    Data Last Modified 2025-08-22T18:32:29Z
    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 8f2f19b0-4581-4263-9e32-681ba0f1d162
    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-national-pfyc-potential-fossil-yield-classification-geologic-formation-az-polygons
    License http://www.usa.gov/publicdomain/label/1.0/
    Metadata Type geospatial
    Old Spatial -124.5589,49,-94.4346,31.3336
    Program Code 010:000
    Source Datajson Identifier True
    Source Hash 0e83e20d23927f16ceb18917a0081c5e979238a73a786e14d540622c6d7ea033
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -124.5589, 49, -124.5589, 31.3336, -94.4346, 31.3336, -94.4346, 49, -124.5589, 49}

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