MODFLOW2000 model and ZONEBUDGET computer program used to simulate the Upper Big Sandy Designated Groundwater Basin alluvial aquifer, Elbert, El Paso, and Lincoln Counties, Colorado, 2016
type: Dataset
description: The previously developed three-dimensional groundwater flow model (MODFLOW2000) of the Denver Basin bedrock aquifer system and overlying alluvial aquifer (https://pubs.er.usgs.gov/publication/pp1770 and model archive https://doi.org/10.5066/F77W69PQ) was updated to provide quantitative estimates of groundwater flow conditions and provide a useful tool for managers to analyze temporal changes to the hydrologic system in response to changing climatic conditions and future groundwater development. The computer program ZONEBUDGET was used to calculate cell by cell water balances for the major components of the water budget for the Upper Big Sandy Designated Groundwater Basin alluvial aquifer. The original Denver Basin groundwater flow model was done as part of a large-scale regional groundwater availability study of the principal aquifers and represents regional time-varying (transient) conditions prior to 1880 through 2003. This model was updated to include updated well pumping data through 2016. This U.S. Geological Survey data release contains all of the input and output files for the simulation described in the associated model documentation report (https://doi.org/10.3133/sir20195049).
issued: 2025-11-20T04:34:11.410713
modified: 20180531
spatial: Location
contact point: Organization
  fn: Michael S. Kohn
keyword: alluvial-aquifer
keyword: amerigeo
keyword: amerigeoss
keyword: arapahoe-confining-unit
keyword: ckan
keyword: colorado
keyword: dawson-confining-unit
keyword: denver-aquifer
keyword: denver-basin
keyword: denver-lower-confining-unit
keyword: denver-upper-confining-unit
keyword: environment
keyword: geo
keyword: geoscientificinformation
keyword: geoss
keyword: groundwater
keyword: groundwater-model
keyword: inlandwaters
keyword: laramie-confining-unit
keyword: laramie-fox-hill-aquifer
keyword: lower-arapahoe-aquifer
keyword: lower-dawson-aquifer
keyword: modflow
keyword: modflow2000
keyword: national
keyword: north-america
keyword: pest
keyword: ucode
keyword: united-states
keyword: upper-arapahoe-aquifer
keyword: upper-big-sandy-designated-groundwater-basin
keyword: upper-dawson-aquifer
keyword: usgsgroundwatermodel
theme: {geospatial}

Digital Data
type: Distribution
description: Landing page for access to the data
format: XML
issued: 2022-07-07T14:37:43.542945
modified: 2025-11-20T04:34:11.391936
access URL: https://doi.org/10.5066/P9DEOYGZ
media type: application/http

Original Metadata
type: Distribution
description: The metadata original format
format: XML
issued: 2022-07-07T14:37:43.542934
modified: 2025-11-20T04:34:11.391522
access URL: https://data.usgs.gov/datacatalog/metadata/USGS.d1d5ba49-5f51-40f6-b36a-128bb575ad9b.xml
media type: text/xml

US Migrating
type: Agent