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

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).

Data and Resources

Field Value
accessLevel public
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datagov_dedupe_retained 20220725164314
identifier USGS:d1d5ba49-5f51-40f6-b36a-128bb575ad9b
metadata_type geospatial
modified 20180531
old-spatial {"type": "Polygon", "coordinates": [[[-105.250391, 38.661558], [-105.250391, 40.473775], [ -103.5880118, 40.473775], [ -103.5880118, 38.661558], [-105.250391, 38.661558]]]}
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
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source_hash 1c370a0c22a0dd93afee341b7db5e431b5777970
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theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • alluvial-aquifer
  • amerigeo
  • amerigeoss
  • arapahoe-confining-unit
  • ckan
  • colorado
  • dawson-confining-unit
  • denver-aquifer
  • denver-basin
  • denver-lower-confining-unit
  • denver-upper-confining-unit
  • environment
  • geo
  • geoscientificinformation
  • geoss
  • groundwater
  • groundwater-model
  • inlandwaters
  • laramie-confining-unit
  • laramie-fox-hill-aquifer
  • lower-arapahoe-aquifer
  • lower-dawson-aquifer
  • modflow
  • modflow2000
  • national
  • north-america
  • pest
  • ucode
  • united-states
  • upper-arapahoe-aquifer
  • upper-big-sandy-designated-groundwater-basin
  • upper-dawson-aquifer
  • usgs-d1d5ba49-5f51-40f6-b36a-128bb575ad9b
  • usgsgroundwatermodel
isopen False
license_id notspecified
license_title License not specified
maintainer Michael S. Kohn
maintainer_email mkohn@usgs.gov
metadata_created 2025-11-20T04:34:11.410713
metadata_modified 2025-11-20T04:34:11.410717
notes 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).
num_resources 2
num_tags 34
title 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