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MODFLOW-2000 model files used to simulate wellbore flow and evaluate aquifer properties and heterogeneity in wells at Fort Irwin National Training Center, San Bernardino County, California

Metadata Updated: October 26, 2023

MODFLOW-2000 was used within the AnalyzeHOLE program--an integrated wellbore flow analysis tool ( simulate the 2-D radial flow to each of six wells within three basins at the Fort Irwin National Training Center in San Bernardino County, California. Wellbore flow was simulated for each well by using AnalyzeHOLE to evaluate aquifer properties and heterogeneity. Horizontal layers within the model (hydrogeologic units) were defined based on lithologic and geophysical logs from each well and adjusted during calibration. The majority of the wells were installed in previously underdeveloped or minimally developed groundwater basins. The information gathered from the models provides a basis for developing and constraining basin-scale hydrogeologic-framework and groundwater-flow models that will be used to further evaluate water resources in each groundwater basin. This USGS data release contains all of the input and output files for the AnalyzeHOLE analysis of six wells described in the associated U.S. Geological Survey Scientific Investigations Report 2019-5091 (

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date June 1, 2023
Metadata Updated Date October 26, 2023

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date October 26, 2023
Publisher U.S. Geological Survey
Identifier USGS:9a0c7cd8-ab20-451a-9f6c-40ac226a5344
Data Last Modified 20201117
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id f51f68ac-4a36-487f-b6f3-83cb397e16fd
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -117.078,35.261,-116.66,35.45
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash ab8bcfc0e8a63f29112792bd6e5868558bf91d6a00d1d341c593e7a106e2bc6a
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -117.078, 35.261, -117.078, 35.45, -116.66, 35.45, -116.66, 35.261, -117.078, 35.261}

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