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    • BLM Natl AIM Lotic Indicators Hub

    Metadata Updated: March 18, 2025

    This feature class includes monitoring data collected nationally to understand the status, condition, and trend of resources on BLM lands. Data are collected in accordance with the BLM Assessment, Inventory, and Monitoring (AIM) Strategy. The AIM Strategy specifies a probabilistic sampling design, standard core indicators and methods, electronic data capture and management, and integration with remote sensing. Attributes include the BLM aquatic core indicators: pH, conductivity, temperature, pool depth, length, frequency, streambed particles sizes, bank stability and cover, floodplain connectivity, large woody debris, macroinvertebrate biological integrity, ocular estimates of vegetative type, cover, and structure and canopy cover. In addition, the contingent indicators of total nitrogen and phosphorous, turbidity, bank angle, thalweg depth profile and quantitative vegetation estimates (see the Data Structure and Attribute Information section for exact details on attributes). Data were collected and managed by BLM Field Offices, BLM Districts, and/or affiliated field crews with support from the BLM National Operations Center. Data are stored in a centralized database (BLM AIM Lotic Database) at the BLM National Operations Center.

    Access & Use Information

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

    Downloads & Resources

    Dates

    Metadata Created Date June 1, 2023
    Metadata Updated Date March 18, 2025

    Metadata Source

    Harvested from DOI EDI

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date June 1, 2023
    Metadata Updated Date March 18, 2025
    Publisher Bureau of Land Management
    Maintainer
    @Id http://datainventory.doi.gov/id/dataset/29155d77a547244f32f62baa8b026c1b
    Identifier https://www.arcgis.com/home/item.html?id=97e9d82469194fab88e4193ba591fb72&sublayer=5
    Data First Published 2022-03-08T09:34:18Z
    Data Last Modified 2025-03-17T00:00:00Z
    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://datainventory.doi.gov/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 f3465b12-b51d-464a-98b4-b52faf5e4677
    Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
    Harvest Source Title DOI EDI
    Homepage URL https://gbp-blm-egis.hub.arcgis.com/datasets/BLM-EGIS::blm-natl-aim-lotic-indicators-hub
    License http://www.usa.gov/publicdomain/label/1.0/
    Metadata Type geospatial
    Old Spatial -166.4937,31.4175,-102.3656,71.2686
    Program Code 010:000
    Publisher Hierarchy White House > U.S. Department of the Interior > Bureau of Land Management
    Source Datajson Identifier True
    Source Hash 179000e9c1fe3743386d588ae6ac032e7efc3db7f9d843fd60807bd5e539c56f
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -166.4937, 31.4175, -166.4937, 71.2686, -102.3656, 71.2686, -102.3656, 31.4175, -166.4937, 31.4175}

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