GWIP Reports

This page contains links to the reports/publications that are products of the different GWIP projects. You will also find these reports listed under the individual projects.

Big Sky (Gallatin and Madison Counties)

• MBMG 742—Groundwater model of the Meadow Village aquifer at Big Sky, Montana, 2021
• MBMG 747—Hydrogeology and groundwater availability at Big Sky, Montana, 2022

Belgrade and Manhattan (Gallatin County)

• MBMG 756—Hydrogeologic investigation of the Belgrade-Manhattan area, Gallatin County, Montana: Superposition groundwater modeling report, 2023

Boulder River Valley (Jefferson County)

• IP 12—Groundwater/surface-water study in the Boulder Valley: Effects of groundwater withdrawal, 2017
• MBMG 688—Hydrogeologic investigation of the Boulder Valley, Jefferson County, Montana, Groundwater modeling report, 2017
• MBMG 682—Hydrogeologic investigation of the Boulder Valley, Jefferson County, Montana, Interpretiive report 2016

Clear Lake (Sheridan County)

• MBMG 738—Hydrogeology and water management of the Clear Lake aquifer, with emphasis on the South Medicine Lake management area, 2021
• MBMG 720—South Medicine Lake area of the Clear Lake aquifer: Groundwater model report, 2019

East Flathead Valley (Flathead County)

• MBMG 757—Analyses of three constant-rate aquifer tests, East Flathead Valley, northwest Montana, 2023

Flathead Valley (Flathead and Lake Counties)

• MBMG 752—An evaluation of the unconsolidated hydrogeologic units in the south-central Flathead Valley, Montana, 2022
• MBMG 703—Three-dimensional hydrostratigraphic model of the subsurface geology, Flathead Valley, Kalispell, Montana, 2018
• RI 32—Hydrogeologic investigation of the deep alluvial aquifer, Flathead Valley, Montana, 2022

Four Corners (Gallatin County)

• MBMG 735—Hydrogeologic investigation of the Four Corners area, Gallatin County, Montana, Interpretive report, 2020
• MBMG 652—Hydrogeologic investigation of the Four Corners study area, Gallatin County, Montana, Groundwater modeling report, 2014

Hamilton (Ravalli County)

• MBMG 759—Groundwater quantity and quality near Hamilton, Montana, Interpretive Report, 2023
• MBMG 739—Aquifer tests completed in the Bitterroot Valley, Hamilton, Montana, 2021

Lolo Creek (Missoula County)

• MBMG 754—A compilation of two aquifer tests completed for the Lolo GWIP Project, Lolo Creek (Missoula County),2022

Lower Beaverhead River (Beaverhead County)

• MBMG 637—Hydrogeologic investigation of the Beaverhead River study area, Beaverhead County, Montana, Interpretive report, 2013
• MBMG 638—Hydrogeologic investigation of the Beaverhead River study area, Beaverhead County, Montana, Groundwater modeling report, 2013

Musselshell River (Rosebud and Petroleum Counties)

• IP 15—Sources of salinity to the Musselshell River: Executive summary, 2023
• RI 35—Sources of salinity to the Musselshell River, Musselshell County, Montana, 2023

North Hills (Lewis and Clark County)

• MBMG 654—Groundwater/surface-water study in the Boulder Valley: Effects of groundwater withdrawal, 2017
• MBMG 628—Hydrogeologic investigation of the Boulder Valley, Jefferson County, Montana, Groundwater modeling report, 2017
• MBMG 610—Hydrogeologic investigation of the Boulder Valley, Jefferson County, Montana, Interpretive report, 2016

Powder River Basin

• MBMG 640 — Spring and stream water quality, Powder River Basin, Montana, 2013
• Journal of Hydrology article—Coal aquifer contribution to streams in the Powder River Basin, Montana, v. 537, pp. 130-137.

Scratchgravel Hills (Lewis and Clark County)

• MBMG 646—Hydrogeologic investigation of the Scratchgravel Hills study area, Lewis and Clark County, Montana, Technical report, 2013
• MBMG 643—Hydrogeologic investigation of the Scratchgravel Hills study area, Lewis and Clark County, Montana, Groundwater modeling report, 2013
• MBMG 636—Hydrogeologic investigation of the Scratchgravel Hills study area, Lewis and Clark County, Montana, Interpretive report, 2013

Sidney West Crane Buried Valley Aquifer (Richland County)

• MBMG 769—Hydrogeology and irrigation potential of the West Crane aquifer, Richland County, Montana, Interpretive Report, 2023
• MBMG 737—West Crane aquifer test summaries, Richland County, Montana, 2021
• IP 13—West Crane buried valley aquifer: A hidden resource, 2020

Stevensville (Ravalli County)

• MBMG 733—Hydrogeologic investigation of the Stevensville study area, Ravalli County, Montana, Interpretive report, 2020

Upper Gallatin River, Big Sky (Gallatin County)

• MBMG 750—Aquifer tests completed in the Upper Gallatin River Valley, Big Sky, Montana

Upper Jefferson Valley (Jefferson and Madison Counties)

• IP 14—Groundwater/surface-water study in the Upper Jefferson Valley, Montana: Modeling the effects of changing irrigation practices and increased residential development on low streamflows, 2023
• RI 27—Hydrologic investigation of the Upper Jefferson River Valley, Montana: Whitehall Modeling Report, 2020
• MBMG 727—Aquifer tests in the Upper Jefferson Valley, 2020
• RI 28—Hydrogeologic investigation of the Upper Jefferson Valley, Montana-Interpretive report, 2021
• RI 29—Hydrogeologic investigation of the Upper Jefferson River Valley, Madison and Jefferson Counties, Montana: Waterloo groundwater modeling report, 2021

Virginia City (Madison County)

• MBMG 726—Virginia City, Montana, Aquifer test report, 2020
• RI 30—An investigation of spring sources and potential alternative water supplies near Virginia City, Montana, 2022

Other

• MBMG 755 — Investigation of the inorganic groundwater quality in the West Yellowstone Basin, Gallatin County, Montana, 2023
• MBMG 655 — A MODFLOW tool to define boundaries of a stream depletion zone, 2014
• MBMG 612 — Hydrogeology related to exempt wells in Montana: A Report to the 2010–2012 Water Policy Interim Committee of the Montana legislature, 2012