eng utf8 dataset dataset AIM Lotic Program Manager Bureau of Land Management Lotic Program Manager 720-545-8367

BLM National Operations Center; Denver Federal Center,Building 50 Lakewood CO 80225 US BLM_OC_AIM_Data@blm.gov

pointOfContact 2026-04-10 ISO 19139 Geographic Information - Metadata - Implementation Specification 2007 geometryOnly point 6438 4269 EPSG 6.5(3.0.1) 2013-01-01 creation 2026-04-10 publication 2026-04-10 revision U.S. Department of the Interior, Bureau of Land Management (BLM) originator Bureau of Land Management

Unknown

publisher AIM Lotic Program Manager Bureau of Land Management Lotic Program Manager 720-545-8367

BLM National Operations Center; Denver Federal Center,Building 50 Lakewood CO 80225 US BLM_OC_AIM_Data@blm.gov

principalInvestigator mapDigital 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. This dataset was created to monitor the status, condition and trend of national BLM resources in accordance with BLM policies. The methodology used for the collection of these data can be found in TR 1735-2 (AIM National Aquatic Monitoring Framework: Field Protocol for Wadeable Lotic System). These data should not be used for statistical or spatial inferences without knowledge of how the sample design was drawn or without calculating spatial weights for the points based on the sample design. US Department of the Interior - Bureau of Land Management Assessment, Inventory, and Monitoring Project Team; NAMC onGoing AIM Lotic Program Manager Bureau of Land Management Lotic Program Manager 720-545-8367

BLM National Operations Center; Denver Federal Center,Building 50 Lakewood CO 80225 US BLM_OC_AIM_Data@blm.gov

pointOfContact annually Alaska Arizona California Colorado Idaho Montana Nevada New Mexico North Dakota Oregon South Dakota Utah Washington Wyoming place National place Endangered Geospatial Hydrology Vegetation Wildlife theme AIM AIM_NATL AIM_Policy AIM_Protocol AIM_Tool AK AquaDat Aquatic Aquatics Assessment Inventory Monitoring Program Assessment Inventory Monitoring Strategy AZ BLM Bug Lab CA CO Dashboard Department of the Interior DOI Ecosystem Conditions Fish Floodplain Connectivity Geomorphology Geoscientific Information Greater Sage Grouse GRSG Huc 8 ID Invasive Species Cover Lakes Landscape Monitoring Framework LMF Lotic Lotic Project Macroinvertebrates Monitoring Monitoring Methods MT National National Resources Inventory Native Species Cover ND NM NV OE Macroinvertebrate Cores OR Percent Banks Covered Percent Fines Less than 2mm Projects Reach Restoration Riparian Rivers Sage Grouse Science SD Species Inventory Stable_MIM Streams Terrestrial Project UT Utah State University WA Water quality Watersheds Western Rivers and Streams Assessment WY 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 eng utf8 biota boundaries environment geoscientificInformation inlandWaters Esri ArcGIS 13.5.5.57366 true -157.514027 -102.365554 32.0226 70.761066 2013-01-01 2023-02-06 File Geodatabase Feature Class AIM Lotic Program Manager Bureau of Land Management Lotic Program Manager 720-545-8367

BLM National Operations Center; Denver Federal Center,Building 50 Lakewood CO 80225 US BLM_OC_AIM_Data@blm.gov

distributor https://gbp-blm-egis.hub.arcgis.com/pages/aim dataset Contact contributor of specific features for accuracy information Data are related to the I_Indicators layer based upon the EvaluationID. Contact contributor of specific features for accuracy information Contact contributor of specific features for accuracy information Data were collected by trained field crews with the BLM and partner organizations. They followed the BLM core aquatic core and contingent indicators in TR 1735-2 (AIM National Aquatic Monitoring Framework: Field Protocol for Wadeable Lotic System). Pre-2021 data were captured electronically using the Stream And River Assessment Hub (SARAH), and 2021 and later data were collected using Survey123. They were managed by the data collectors, with oversight from BLM field offices, state offices, and the National Operations Center. This dataset has undergone rigorous QA/QC to ensure data quality. 2022-03-08T00:00:00 AIM Lotic Program Manager Bureau of Land Management Lotic Program Manager 720-545-8367

BLM National Operations Center; Denver Federal Center,Building 50 Lakewood CO 80225 US BLM_OC_AIM_Data@blm.gov

processor 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. None, these data are considered public domain. unknown Last metadata review date: 20230206