Mike is a licensed professional civil engineer in Colorado with the U.S. Geological Survey Colorado Water Science Center.
In 2023, Mike became the surface water specialist for the Colorado Water Science Center. Mike has nearly 15 years of experience in water resources engineering with an emphasis in surface water, applied research, and project management. His technical interests include hydrologic, hydraulic, and sediment transport analysis and modeling, flood-frequency analysis, low-streamflow analysis, bathymetric and terrestrial surveys, and post-flood indirect measurement of streamflow discharge and stage. Mike has successfully completed field-scale research and modeling for flood and sediment transport studies as well as flood inundation mapping and statistical hydrology studies. Mike has managed and/or been the technical lead for the USGS on a variety of surface water and geomorphology studies involving numerous Federal, State, and local partners.
Professional Experience
Surface Water Specialist, U.S. Geological Survey - Colorado Water Science Center, Denver, CO, 2023 to Present.
Civil Engineer, U.S. Geological Survey - Colorado Water Science Center, Denver, CO, 2010 to 2023.
Education and Certifications
Master of Science in Civil Engineering, Iowa State University, Ames, Iowa, 2010.
Bachelor of Science in Civil Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska, 2008.
CERTIFICATIONS
State of Colorado Licensed Professional Engineer #48868.
Science and Products
Characterization of water-resource threats and needs for U.S. Fish and Wildlife Service National Wildlife Refuges in the Legacy Mountain-Prairie Region, 2020
QCam: sUAS-based doppler radar for measuring river discharge
Incipient bed-movement and flood-frequency analysis using hydrophones to estimate flushing flows on the upper Colorado River, Colorado, 2019
Water-budget analysis of the Upper Big Sandy Designated Ground-water Basin alluvial aquifer, Elbert, El Paso, and Lincoln Counties, Colorado, 2016
Flood-inundation maps for the South Platte River at Fort Morgan, Colorado, 2018
Computing under-ice discharge: A proof-of-concept using hydroacoustics and the Probability Concept
Peak discharge, flood frequency, and peak stage of floods on Big Cottonwood Creek at U.S. Highway 50 near Coaldale, Colorado, and Fountain Creek below U.S. Highway 24 in Colorado Springs, Colorado, 2016
Paleoflood investigations to improve peak-streamflow regional-regression equations for natural streamflow in eastern Colorado, 2015
Identifying and preserving high-water mark data
Evaluation of mean-monthly streamflow-regression equations for Colorado, 2014
Remediation scenarios for attenuating peak flows and reducing sediment transport in Fountain Creek, Colorado, 2013
Web-based flood database for Colorado, water years 1867 through 2011
Streamflows at Baca and Alamosa National Wildlife Refuges using Non-Contact Technology
Incipient Bed-Movement and Flood-Frequency Analysis Using Hydrophones to Estimate Flushing Flows on the Upper Colorado River, Colorado, 2019
Bathymetry of Deadmans Lake, Golf Course Reservoir 9, Ice Lake, Kettle Lakes 1–3, and Non-Potable Reservoirs 1–4 at the U.S. Air Force Academy, Colorado, 2019
Topographic Survey Data of Fountain Creek between Colorado Springs and the Confluence of Fountain Creek at the Arkansas River
Paleoflood Investigations to Improve Flood-Frequency Estimates for Eastern Colorado
Peak-streamflow , Mean-streamflow , and Low-streamflow Equations for Western Colorado
Peak Discharge, Flood Frequency, and Peak Stage of Floods
Fountain Creek Watershed Flood and Sediment Transport Study
Fort Morgan Flood Inundation Mapping Study
Clear Creek Reservoir Bathymetry
Eastern Colorado Crest-Stage Gage Network
Validation of Monthly-Mean Streamflow Equations
Cross-section geometry and sediment-size distribution data from the Upper Colorado River, April 6-8, 2022
Acoustic, Spatial, and Sediment Size Data Collected on the Upper Colorado River to Estimate the Flushing Flows, Colorado, 2019
Survey and Bathymetric Data of Deadmans Lake; Golf Course Reservoir 9; Ice Lake; Kettle Lakes 1-3; and Non-Potable Reservoirs 1-4 at the U.S. Air Force Academy, Colorado, 2019 (ver. 1.1, June 2020)
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
Water-surface elevations derived from submersible pressure transducers deployed along the Salcha River, AK, July -October 2018
Bathymetric survey of the Green River near Jensen, Utah, March 26-29, 2018
Water-surface elevations derived from submersible pressure transducers deployed along the Green River near Jensen, Utah, February-September, 2018
Geospatial Data and Surface-Water Model Archive for a Flood-Inundation Mapping Study of the South Platte River at Fort Morgan, Colorado, 2018
Topographic Survey Data of Fountain Creek between Colorado Springs and the Confluence of Fountain Creek at the Arkansas River, Colorado, 2012 to 2017
Cross Section Data and Pressure Transducer Location of the South Platter River near Fort Morgan, Colorado, 2017
Gridded bathymetry data of Clear Creek Reservoir, Chaffee County, Colorado, 2016
Bathymetry of Deadmans Lake, Golf Course Reservoir 9, Ice Lake, Kettle Lakes 1–3, and Non-Potable Reservoirs 1–4 at the U.S. Air Force Academy, Colorado, 2019
Bathymetry of Clear Creek Reservoir, Chaffee County, Colorado, 2016
To better characterize the water supply capacity of Clear Creek Reservoir, Chaffee County, Colorado, the U.S. Geological Survey, in cooperation with the Pueblo Board of Water Works and Colorado Mountain College, carried out a bathymetry survey of Clear Creek Reservoir. A bathymetry map of the reservoir is presented here with the elevation-surface area and the elevation-volume relations. The bathym
Bathymetry of Totten Reservoir, Montezuma County, Colorado, 2011
Bathymetry of Groundhog Reservoir, Dolores County, Colorado, 2011
Science and Products
- Publications
Characterization of water-resource threats and needs for U.S. Fish and Wildlife Service National Wildlife Refuges in the Legacy Mountain-Prairie Region, 2020
The U.S. Geological Survey, in cooperation with the U.S. Fish and Wildlife Service (FWS), began a study in 2019 to complete the compilation and quality assurance of water-resource threats and needs data for the 117 National Wildlife Refuges (NWRs) in the FWS Legacy Mountain-Prairie Region (LMPR) and to characterize the water-resource threats and needs of each refuge and of the LMPR itself. The LMPAuthorsNancy J. Bauch, Michael S. Kohn, Brian S. CarusoQCam: sUAS-based doppler radar for measuring river discharge
The U.S. Geological Survey is actively investigating remote sensing of surface velocity and river discharge (discharge) from satellite-, high altitude-, small, unmanned aircraft systems- (sUAS or drone), and permanent (fixed) deployments. This initiative is important in ungaged basins and river reaches that lack the infrastructure to deploy conventional streamgaging equipment. By coupling alternatAuthorsJohn W. Fulton, Isaac E. Anderson, C.-L. Chiu, Wolfram Sommer, Josip Adams, Tommaso Moramarco, David M. Bjerklie, Janice M. Fulford, Jeff L. Sloan, Heather Best, Jeffrey S. Conaway, Michelle J. Kang, Michael S. Kohn, Matthew J. Nicotra, Jeremy J. PulliIncipient bed-movement and flood-frequency analysis using hydrophones to estimate flushing flows on the upper Colorado River, Colorado, 2019
In 2019, the U.S. Geological Survey, in cooperation with the Upper Colorado River Wild and Scenic Stakeholder Group, studied the magnitude and recurrence interval of streamflow (discharge) needed to initiate bed movement of gravel-sized and finer sediment in a segment of the Colorado River in Colorado to better understand sediment movement and its relation to flow regimes of the river. The study aAuthorsMichael S. Kohn, Mathieu D. Marineau, Laura A. Hempel, Richard R. McDonaldWater-budget analysis of the Upper Big Sandy Designated Ground-water Basin alluvial aquifer, Elbert, El Paso, and Lincoln Counties, Colorado, 2016
The U.S. Geological Survey in cooperation with the Colorado Water Conservation Board and the Upper Big Sandy Groundwater Management District carried out a study in 2016 to evaluate potential groundwater storage changes within the Upper Big Sandy Designated Groundwater Basin (UBSDGB) alluvial aquifer, including groundwater flow between the UBSDGB alluvial aquifer and the Denver Basin bedrock aquifeAuthorsMichael S. Kohn, Jeannette H. Oden, L. R. ArnoldFlood-inundation maps for the South Platte River at Fort Morgan, Colorado, 2018
In 2017, the U.S. Geological Survey (USGS), in cooperation with the Colorado Water Conservation Board (CWCB), studied floods in the historic record to produce a library of flood-inundation maps for the South Platte River at Fort Morgan, Colorado. Digital flood-inundation maps for a 4.5-mile (7.2-kilometers) reach of the South Platte River at Fort Morgan from Morgan County Road 16 to Morgan CountyAuthorsMichael S. Kohn, Thuy T. PattonComputing under-ice discharge: A proof-of-concept using hydroacoustics and the Probability Concept
Under-ice discharge is estimated using open-water reference hydrographs; however, the ratings for ice-affected sites are generally qualified as poor. The U.S. Geological Survey (USGS), in collaboration with the Colorado Water Conservation Board, conducted a proof-of-concept to develop an alternative method for computing under-ice discharge using hydroacoustics and the Probability Concept.The studyAuthorsJohn W. Fulton, Mark F. Henneberg, Taylor J. Mills, Michael S. Kohn, Brian Epstein, Elizabeth Hittle, William C. Damschen, Christopher D. Laveau, Jason M. Lambrecht, William H. FarmerPeak discharge, flood frequency, and peak stage of floods on Big Cottonwood Creek at U.S. Highway 50 near Coaldale, Colorado, and Fountain Creek below U.S. Highway 24 in Colorado Springs, Colorado, 2016
The U.S. Geological Survey (USGS), in cooperation with the Colorado Department of Transportation, determined the peak discharge, annual exceedance probability (flood frequency), and peak stage of two floods that took place on Big Cottonwood Creek at U.S. Highway 50 near Coaldale, Colorado (hereafter referred to as “Big Cottonwood Creek site”), on August 23, 2016, and on Fountain Creek below U.S. HAuthorsMichael S. Kohn, Michael R. Stevens, Amanullah Mommandi, Aziz R. KhanPaleoflood investigations to improve peak-streamflow regional-regression equations for natural streamflow in eastern Colorado, 2015
The U.S. Geological Survey (USGS), in cooperation with the Colorado Department of Transportation, developed regional-regression equations for estimating the 50-, 20-, 10-, 4-, 2-, 1-, 0.5-, 0.2-percent annual exceedance-probability discharge (AEPD) for natural streamflow in eastern Colorado. A total of 188 streamgages, consisting of 6,536 years of record and a mean of approximately 35 years of recAuthorsMichael S. Kohn, Michael R. Stevens, Tessa M. Harden, Jeanne E. Godaire, Ralph E. Klinger, Amanullah MommandiIdentifying and preserving high-water mark data
High-water marks provide valuable data for understanding recent and historical flood events. The proper collection and recording of high-water mark data from perishable and preserved evidence informs flood assessments, research, and water resource management. Given the high cost of flooding in developed areas, experienced hydrographers, using the best available techniques, can contribute high-qualAuthorsTodd A. Koenig, Jennifer L. Bruce, Jim O'Connor, Benton D. McGee, Robert R. Holmes, Ryan Hollins, Brandon T. Forbes, Michael S. Kohn, Mathew Schellekens, Zachary W. Martin, Marie C. PepplerEvaluation of mean-monthly streamflow-regression equations for Colorado, 2014
The U.S. Geological Survey, in cooperation with the Colorado Water Conservation Board, evaluated the predictive uncertainty of mean-monthly streamflow-regression equations representative of natural streamflow conditions in Colorado. This study evaluates the predictive uncertainty of mean-monthly streamflow-regression equations developed in a 2009 U.S. Geological Survey study using streamflow dataAuthorsMichael S. Kohn, Michael R. Stevens, Andrew R. Bock, Stephen J. CharRemediation scenarios for attenuating peak flows and reducing sediment transport in Fountain Creek, Colorado, 2013
The U.S. Geological Survey (USGS) in cooperation with the Fountain Creek Watershed, Flood Control and Greenway District assessed remediation scenarios to attenuate peak flows and reduce sediment loads in the Fountain Creek watershed. To evaluate these strategies, the U.S. Army Corps of Engineers Hydrologic Engineering Center (HEC) hydrologic and hydraulic models were employed. The U.S. Army CorpsAuthorsMichael S. Kohn, John W. Fulton, Cory A. Williams, Robert W. Stogner, Sr.Web-based flood database for Colorado, water years 1867 through 2011
In order to provide a centralized repository of flood information for the State of Colorado, the U.S. Geological Survey, in cooperation with the Colorado Department of Transportation, created a Web-based geodatabase for flood information from water years 1867 through 2011 and data for paleofloods occurring in the past 5,000 to 10,000 years. The geodatabase was created using the Environmental SysteAuthorsMichael S. Kohn, Robert D. Jarrett, Gary S. Krammes, Amanullah Mommandi - Science
Filter Total Items: 16
Streamflows at Baca and Alamosa National Wildlife Refuges using Non-Contact Technology
The goal of this study is to design, install, and operationalize non-contact radar monitoring to measure streamflow at two sites at National Wildlife Refuges (NWRs) in the San Luis Valley, Colorado. Where traditional monitoring equipment in a stream channel is difficult to operate and maintain, non-contact radar technology is a solution that provides more cost-effective and accurate continuous...Incipient Bed-Movement and Flood-Frequency Analysis Using Hydrophones to Estimate Flushing Flows on the Upper Colorado River, Colorado, 2019
In an effort to better understand sediment movement and its relation to flow regimes of the Upper Colorado River in Colorado, in 2019, the U.S. Geological Survey, in cooperation with the Upper Colorado River Wild and Scenic Stakeholder Group, studied the magnitude and recurrence interval of streamflow (discharge) needed to initiate bed movement of gravel-sized and finer sediment in a segment of...Bathymetry of Deadmans Lake, Golf Course Reservoir 9, Ice Lake, Kettle Lakes 1–3, and Non-Potable Reservoirs 1–4 at the U.S. Air Force Academy, Colorado, 2019
The U.S. Geological Survey, in cooperation with the U.S. Air Force Academy (USAFA), carried out bathymetric and topographic surveys to characterize the volume of Deadmans Lake, Golf Course Reservoir 9, Ice Lake, Kettle Lakes 1–3, and Non-Potable Reservoirs 1–4 at the U.S. Air Force Academy, Colorado. The study is meant to improve reservoir regulation and operation during periods of drought or high...Topographic Survey Data of Fountain Creek between Colorado Springs and the Confluence of Fountain Creek at the Arkansas River
The U.S. Geological Survey (USGS) in cooperation with Colorado Springs Utilities selected 10 reaches or study areas along Fountain Creek between Colorado Springs and the confluence of Fountain Creek at the Arkansas River for annual bed and bank characterization and topographic surveys.Paleoflood Investigations to Improve Flood-Frequency Estimates for Eastern Colorado
The peak-streamflow regional-regression equations (PSRREs) in the Plains hydrologic region in eastern Colorado have the largest uncertainty of any hydrologic region in Colorado. Reliable peak-streamflow information is critical for the proper design of stream-related infrastructure, such as bridges and dams, and flood-plain inundation maps. In an effort to provide more reliable peak-streamflow...Peak-streamflow , Mean-streamflow , and Low-streamflow Equations for Western Colorado
Reliable peak-streamflow data are critical to design transportation infrastructure, such as bridges, culverts, dams, and floodplain inundation maps. At gaged sites, where sufficient long-term streamflow data have been collected, statistics can be obtained from available publications, by an analysis of available data in the U.S. Geological Survey (USGS) National Water Information System (NWIS)...Peak Discharge, Flood Frequency, and Peak Stage of Floods
The U.S. Geological Survey (USGS), in cooperation with the Colorado Department of Transportation, determined the peak discharge, annual exceedance probability (flood frequency), and peak stage of two floods that took place on Big Cottonwood Creek at U.S. Highway 50 near Coaldale, Colorado (hereafter referred to as “Big Cottonwood Creek site”), on August 23, 2016, and on Fountain Creek below U.S...Fountain Creek Watershed Flood and Sediment Transport Study
The Fountain Creek watershed, Colorado, is characterized by steep channel slopes and varied land use. Spatially distributed precipitation events result in varying rates of direct runoff. These dynamics contribute to large streamflows and sediment transport, which has caused periodic flooding, and sediment aggradation and deposition in Fountain Creek and its tributary streams. The U.S. Geological...Fort Morgan Flood Inundation Mapping Study
In 2017, the U.S. Geological Survey (USGS), in cooperation with the Colorado Water Conservation Board (CWCB), studied floods in the historic record to produce a library of flood-inundation maps for the South Platte River at Fort Morgan, Colorado.Clear Creek Reservoir Bathymetry
To better characterize the water supply capacity of Clear Creek Reservoir, Chaffee County, Colorado, the U.S. Geological Survey, in cooperation with the Pueblo Board of Water Works and Colorado Mountain College, carried out a bathymetry survey of Clear Creek Reservoir. The equipment and methods used in this study allowed water-resource managers to maintain typical reservoir operations, eliminating...Eastern Colorado Crest-Stage Gage Network
The U.S. Geological Survey StreamStats program can be used to estimate the magnitude of various annual exceedance probability floods such as the 50-year or 100-year floods at locations where no streamgage data are available. In eastern Colorado where few streamgages exist, the regional-flood equations used in StreamStats have large uncertainties. In order to reduce these uncertainties, the U.S...Validation of Monthly-Mean Streamflow Equations
The U.S. Geological Survey, in cooperation with the Colorado Water Conservation Board, evaluated the predictive uncertainty of mean-monthly streamflow-regression equations representative of natural streamflow conditions in Colorado. This study evaluates the predictive uncertainty of mean-monthly streamflow-regression equations developed in a 2009 U.S. Geological Survey study using streamflow data... - Data
Cross-section geometry and sediment-size distribution data from the Upper Colorado River, April 6-8, 2022
The U.S. Geological Survey collected geomorphic monitoring data in cooperation with the Upper Colorado River Wild and Scenic Stakeholder Group. This data release contains cross-section geometry and sediment-size distribution data collected from five sites on the Upper Colorado River, Colorado during April 6-8, 2022. The five sites selected for monitoring were located at the Pumphouse Recreation ArAcoustic, Spatial, and Sediment Size Data Collected on the Upper Colorado River to Estimate the Flushing Flows, Colorado, 2019
In 2019, the U.S. Geological Survey, in cooperation with the Upper Colorado River Wild and Scenic Stakeholder Group, studied the magnitude and frequency of streamflow needed to initiate bedload transport of gravel-sized and finer sediment on the Colorado River to maintain spawning habitat for fish and maintain substrate and interstitial spaces for benthic macroinvertebrates. Bedload transport occuSurvey and Bathymetric Data of Deadmans Lake; Golf Course Reservoir 9; Ice Lake; Kettle Lakes 1-3; and Non-Potable Reservoirs 1-4 at the U.S. Air Force Academy, Colorado, 2019 (ver. 1.1, June 2020)
The U.S. Geological Survey (USGS), in cooperation with the U.S. Air Force Academy, carried out bathymetry surveys to characterize the water-supply capacity of Deadmans Lake; Golf Course Reservoir 9; Ice Lake; Kettle Lakes 1, 2, and 3; and Non-Potable reservoirs 1, 2, 3, and 4 at the U.S. Air Force Academy, Colorado in 2019. This data release includes: the elevation and volumes at specified elevatiMODFLOW2000 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 thWater-surface elevations derived from submersible pressure transducers deployed along the Salcha River, AK, July -October 2018
The U.S. Geological Survey deployed seven submersible pressure transducers on the bottom of the Salcha River in July 2018. An additional transducer was left out of the water to correct for barometric pressure fluctuations. At the time of deployment, the bank position near each transducer and the water-surface elevation were measured with Global Navigation Satellite System (GNSS) equipment. The traBathymetric survey of the Green River near Jensen, Utah, March 26-29, 2018
A topographic and bathymetric survey was collected along a reach of the Green River downstream of Dinosaur National Monument. The surveyed reach extends approximately 16 kilometers upstream and 6 kilometers downstream of the U.S. Route 40 bridge near Jensen, Utah. The topographic and bathymetric data include survey point data for 382 cross sections over 22 kilometers and are provided as a text filWater-surface elevations derived from submersible pressure transducers deployed along the Green River near Jensen, Utah, February-September, 2018
Twenty one submersible pressure transducers were deployed along the Green River near Jensen Utah in late February 2018. At some locations two transducers were deployed at different elevations to capture the expected range of water level fluctuations, an "upper" and "lower" transducer. Two additional transducers were left out of the water to correct for barometric pressure fluctuations. At the timeGeospatial Data and Surface-Water Model Archive for a Flood-Inundation Mapping Study of the South Platte River at Fort Morgan, Colorado, 2018
The development and the generation of the datasets that are published through this data release, were based on the results and findings of this report: Kohn, M.S. and Patton, T.T., 2018, Flood-Inundation Maps for the South Platte River at Fort Morgan, Colorado, 2018: U.S. Geological Survey Scientific Investigations Report 2018-5114, 14 p., https://doi.org/10.3133/sir20185114. The geospatial dataseTopographic Survey Data of Fountain Creek between Colorado Springs and the Confluence of Fountain Creek at the Arkansas River, Colorado, 2012 to 2017
In 2012, the U.S. Geological Survey (USGS) in cooperation with Colorado Springs Utilities selected 10 reaches or study area along Fountain Creek between Colorado Springs and the confluence of Fountain Creek at the Arkansas River for annual bed and bank characterization and topographic surveys. The selected 10 study areas are approximately 5 to 20 bank-full channel widths in length. The topographicCross Section Data and Pressure Transducer Location of the South Platter River near Fort Morgan, Colorado, 2017
The USGS Colorado Water Science Center, in cooperation with the Colorado Water Conservation Board, collected hydraulic data for the South Platte River for areas adjacent to Fort Morgan, Colo., based on the USGS streamgage 06759500 South Platte River at Fort Morgan, CO. The hydraulic data include survey point data for 54 cross sections and 10 pressure transducers, which are used to record the riverGridded bathymetry data of Clear Creek Reservoir, Chaffee County, Colorado, 2016
To better characterize the water supply capacity of Clear Creek Reservoir, Chaffee County, Colorado, the U.S. Geological Survey, in cooperation with the Pueblo Board of Water Works and Colorado Mountain College, carried out a bathymetry survey of Clear Creek Reservoir. The bathymetry data of the reservoir is presented here in a 1-foot grid. The bathymetry survey was carried out June 69, 2016, usin - Maps
Bathymetry of Deadmans Lake, Golf Course Reservoir 9, Ice Lake, Kettle Lakes 1–3, and Non-Potable Reservoirs 1–4 at the U.S. Air Force Academy, Colorado, 2019
The U.S. Geological Survey, in cooperation with the U.S. Air Force Academy (USAFA), carried out bathymetric and topographic surveys to characterize the volume of Deadmans Lake, Golf Course Reservoir 9, Ice Lake, Kettle Lakes 1–3, and Non-Potable Reservoirs 1–4 at the U.S. Air Force Academy, Colorado. Bathymetric maps of each lake and reservoir are presented with figures of the elevation-volume curBathymetry of Clear Creek Reservoir, Chaffee County, Colorado, 2016
To better characterize the water supply capacity of Clear Creek Reservoir, Chaffee County, Colorado, the U.S. Geological Survey, in cooperation with the Pueblo Board of Water Works and Colorado Mountain College, carried out a bathymetry survey of Clear Creek Reservoir. A bathymetry map of the reservoir is presented here with the elevation-surface area and the elevation-volume relations. The bathym
Bathymetry of Totten Reservoir, Montezuma County, Colorado, 2011
In order to better characterize the water supply capacity of Totten Reservoir, Montezuma County, Colorado, the U.S. Geological Survey, in cooperation with the Dolores Water Conservancy District, conducted a bathymetric survey of Totten Reservoir. The study was performed in June 2011 using a man-operated boat-mounted multibeam echo sounder integrated with a global positioning system and a terrestriBathymetry of Groundhog Reservoir, Dolores County, Colorado, 2011
In order to better characterize the water supply capacity of Groundhog Reservoir, Dolores County, Colorado, the U.S. Geological Survey, in cooperation with the Dolores Water Conservancy District, conducted a bathymetric survey of Groundhog Reservoir. The study was performed in June 2011 using a man-operated boat-mounted multibeam echo sounder integrated with a global positioning system and a terre - Multimedia