MODFLOW-NWT groundwater model used for simulating potential future pumping scenarios and forecasting associated groundwater-level changes in the Truxton aquifer on the Hualapai Reservation and adjacent areas, Mohave County, Arizona

Metadata Updated: November 12, 2020

A three-dimensional, numerical groundwater flow model of the Hualapai Plateau and Truxton Basin was developed to assist water-resource managers in understanding the potential effects of projected groundwater withdrawals on groundwater levels and storage in the basin. The Truxton Basin Hydrologic Model (TBHM) was developed using previously published data, as well as, new geophysical data collected as part of this investigation (Ball, 2020; Kennedy, 2020). TBHM is a transient model that simulates the hydrologic system between the years 1976–2140, including three hypothetical groundwater withdrawal scenarios between 2020–2140. The predevelopment (before 1976) groundwater system is simulated using a steady-state model. The TBHM study area encompasses 1,200 square miles (mi2), including the Truxton basin (approximately 75 mi2) and much of the surrounding Hualapai Plateau. Potential future pumping scenarios are simulated in Truxton Basin at the existing Truxton well field and at a hypothetical new pumping location in the northern portion of the basin. This USGS data release contains all of the input and output files for the simulations described in the associated model documentation report (

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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 Date March 31, 2020
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) January 1, 2020 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from DOI Open Data

Graphic Preview

Image of the model domain and active area of the model.

Additional Metadata

Resource Type Dataset
Metadata Date March 31, 2020
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) January 1, 2020 (publication)
Responsible Party U.S. Geological Survey (Point of Contact)
Contact Email
Access Constraints Use Constraints: none, Access Constraints: None. Acknowledgement of the U.S. Geological Survey would be appreciated in products derived from this data release.
Bbox East Long -113.011707
Bbox North Lat 36.163460
Bbox South Lat 35.158229
Bbox West Long -114.342479
Coupled Resource
Frequency Of Update notPlanned
Graphic Preview Description Image of the model domain and active area of the model.
Graphic Preview File
Graphic Preview Type jpg
Licence The data have been approved for release by the U.S. Geological Survey (USGS). Although the data have been subjected to rigorous review and are substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, the data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from authorized or unauthorized use. Although the data, software, and related material have been processed successfully on a computer system at the USGS, no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. The USGS or the U.S. Government shall not be held liable for improper or incorrect use of the data described and/or contained herein. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 1975-12-31
Temporal Extent End 1975-12-31

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