Ahmed Abukhtwa, MS, Sedimentology; Advisor – Sean Gallen

• Thesis: Sedimentary Character and Processes in Mudstone Inter-Lobe Deposits of the Skull Creek Formation, Fort Collins, Colorado, 2025

Ethan Ader, MS Geomorphology; Advisor – Ellen Wohl

• Thesis: Geomorphic Effects of Increased Wood Loading on Hyporheic Exchange Flow, 2019

Victoria Arnold, MS Program 2024; Advisor – John Ridley

• Thesis: Environmental Effects of the 1978 Sunnyside Mine Flood. 2024

Michael Baker, PhD Seismology 2020; Advisor – Rick Aster

• Dissertation: Ambient and Teleseismic Elastic Wavefields of the Ross Ice Shelf Antarctica, and Their Application to Crustal Scale Seismic Imaging, 2020

Andrew Bolton, MS Seismology 2021; Advisor – Derek Schutt

• Thesis: Evidence for a Rotation in Asthenospheric Flow in Northwest Canada: Insights from Shear Wave Splitting, 2021

Randall Bonnell, PHD; Advisor – Dan McGrath

• Dissertation: Evaluating L-band Radar for the Future of Snow Remote Sensing, 2024

John Boyle, MS Hydrogeology; Advisor – William Sanford

Tomalika Biswas, MS Program, Geophysics and Seismology; Advisor – Derek Schutt

• Thesis: Using Ambient Noise Data Processing to Image Western Canada (pending submission, 2025)

Nick Chohan, MS, Hydrogeology – Advisor: Bill Sanford

• Thesis: Determining the Influence of Wetland Drainage on Baseflow in a High-Elevation, Snowmelt-Dominated Headwater Watershed, Senator Beck Basin, San Juan Mountains, SW Colorado, 2025

Kristen Cognac, PHD Hydrogeology/Hydrogeophysics; Advisor – Mike Ronayne

• Thesis: Effects of Long-Term Pumping on Recharge Processes in an Alluvial-Bedrock Aquifer System, 2019
• Dissertation: Evaluating Spatial and Temporal Controls on Recharge Fluxes in a Stream-Alluvial-Bedrock Aquifer System, 2023

Hank Cole, MS Seismology; Advisor – Rick Aster

• Thesis: Tidally Induced Seismicity at the Grounded Margins of the Ross Ice Shelf, Antarctica, 2020

Tracey Cotterell, MS; Advisor – John Ridley

• Thesis: Geochemistry and Characteristics of Brecciation at the Lamprophyre-Hosted Sapphire Deposit at Yogo Gulch, Montana, 2022

Ally Detre, MS Cryospheric Science; Advisor – Dan McGrath

• Thesis: Comparing SNOTEL Soil Moisture Pulse and Sentinel-1 Estimates of Snowmelt Runoff Timing Across the Western U.S.: Implications for Radar Remote Sensing, 2025

Valerie Doebley, MS Hydrogeology & Geomorphology; Advisor – Mike Ronayne

• Thesis: Controls on Groundwater-Surface Water Interaction in a Glacial Valley, Northern Colorado, 2022

Amanda Doherty, MS Geochemistry; Advisor – Sally Sutton

• Thesis: Geochemical Modeling-Based Prediction of Water-Rock Interaction During Aquifer Storage and Recovery Utilizing Selected Colorado Front Range Aquifers, 2023

Elizabeth Driscoll, MS Paleoclimatology; Advisor – Jeremy Caves Rugenstein

• Thesis: Tracking the Terrestrial Hydroclimate and Paleoclimate Response to Changes in Atmospheric pCO2 Using Stable Oxygen and Carbon Isotopes: A Proxy-Model Comparison Across Cenozoic Eurasia, 2022

Sarah Dunn, MS Fluvial Geomorphology; Advisor – Sara Rathburn

• Thesis: Dammed ponds! A study of post-fire sediment and carbon dynamics in beaver ponds and their contributions to watershed resilience, 2023

Johanna Eidmann, PhD Geomorphology and Critical Zone; Advisor – Sean Gallen

• Thesis: Analyzing Post-flood Recovery after an Extreme Flood: North St. Vrain Creek, CO, 2018
• Dissertation: Exploring New Approaches to Understanding Channel Width and Erosion Rates in Bedrock Rivers, Puerto Rico, USA, 2022

Luis Carlos Escobar Arenas, MS; Advisor – Lisa Stright

• Thesis: Modeling of Channel Stacking Patterns Controlled by Near Wellbore, 2023

Marissa Fichera, MS Hydrogeology; Advisor – William Sanford

• Thesis: Numerical Modeling and Hydrochemical Analysis of the Current and Future State of Seawater Intrusion in the Todos Santos Aquifer, Mexico, 2019

Julia Grabowski, MS; Advisor – Ellen Wohl

• Thesis: Logjam attenuation of annual sediment waves in eolian-fluvial environments, North Park, Colorado, 2021

E. Manny Guerzon, MS Geophysics; Advisor – Dennis Harry

• Thesis: Rift to Drift Transition in the Southwest Australian Deepwater Mentelle Basin, 2021

David Heath, MS Geophysics; Advisor – Derek Schutt

• Thesis: Detection and Relocation of Earthquakes in the Sparsely Instrumented Mackenzie Mountains Region, Yukon and Northwest Territories, Canada, 2020

Cece Hurtado, MS; Advisor – Sean Gallen

• Dissertation: Neotectonic Effects of Glacial Erosion and Deglaciation on the Sangre de Cristo mountains and normal fault system, Southern Colorado, 2023

Emily Iskin, PhD Geomorphology; Advisor – Ellen Wohl

• Thesis: The Fabric of Wood: Patterns and Processes of River and Floodplain Large Wood on the Merced River, Yosemite National Park, California, 2020

Erika Jaski, MS Geophysics & Seismology; Advisor – Rick Aster

• Thesis: Event Detection and Analysis of a Dense Three-Component Near-Summit Seismic Array Deployed at Erebus Volcano

Erinn Johnson, MS Structural Geology; Advisor – John singleton

• Thesis: Structural Analysis Along the Ouray Fault, Southwestern Colorado: Implications for the Kinematic Development of the Late Paleozoic Ancestral Rocky Mountains

Sumant Jha, PHD Geophysics; Advisor – Dennis Harry

• Dissertation: Analysis of Flexural Evolution of The Lithosphere Over the Past 4.6 Ma Around Ross Island, West Antarctica, 2019

Mu “Anne” Ji, MS Environmental Geochemistry; Advisor – John Ridley

• Thesis: Characterization and prediction of long-term arsenic mobility, dissolution, and kinetic behavior in arsenic contaminated floodplain deposits of Whitewood Creek and the Belle Fourche River, South Dakota, 2021

Aaron Katz, MS Fluvial Geomorphology; Advisor – Ellen Wohl

• Thesis: Shifting Sands: Drivers and Mobilization of Fine Sediment on the Cache La Poudre River Following a Wildfire, 2024

John Kemper, PhD Fluvial Geomorphology; Advisor – Sara Rathburn

• Dissertation: Process Linkages in Large Watersheds: Connecting Tributary Erosion to Downstream Channel Change and Floodplain Forest Establishment in the Yampa and Green River Basin, 2022

Aditya Khare, MS Seismology/Geophysics; Advisor – Derek Schutt

• Thesis: Mantle Velocity Variations Under the Northern Canadian Cordillera Through Body Wave Tomography, 2019

Richard Knox, PhD Fluvial Geomorphology; Advisor – Ellen Wohl

• Dissertation: The Geography of Artificial Levees in the United States, 2022

Zack Kornse, MS Fluvial Geomorphology; Advisor – Ellen Wohl

• Thesis: Prioritization of Beaver (Castor Canadensis) Reintroduction Sites within Semi-Arid Grassland Rivers in the Great Plains, 2020

Teresa Langenkamp, MS; Advisor – Lisa Stright

• Thesis: Evaluating the impact of deep-water channel architecture on the probability of correct facies classification using 3D synthetic seismic data, 2021

Deanna Laurel, PHD; Advisor – Ellen Wohl

• Dissertation: The Effects of Beaver Engineering on Downstream Fluxes in Colorado Mountain Streams, 2019

Amber Lidell, MS Hydrogeology; Advisor – William Sanford

• Thesis: Low-Cost Data Loggers for Use with the Conductivity Mass Balance Method to Estimate Baseflow at Snowmelt-Dominated Headwater Streams in Northwestern Colorado, 2021

Jake McCane, MS; Advisor – John Ridley

• Thesis: Variation in Clinopyroxene Texture, Composition, and Crystallization Depth of Late Cretaceous to Early Eocene Lamprophyric Rocks from Alkaline Calc-Alkaline Magmatic Complexes of Montana, USA, 2021

Andrew McCarthy, MS Reservoir Characterization; Advisor – Lisa Stright

• Thesis – Evaluating Covariance-based Geostatistical Methods with Bed-Scale Outcrop Statistics Conditioning for Reproduction of Intra-Point Bar Facies Architecture, Cretaceous Horseshoe Canyon Formation, Alberta, Canada, 2022

Nicole McMahon, PhD Seismology; Advisor – Rick Aster

• Dissertation: Automated Event Detectors Utilized for Continental Intraplate Earthquakes: Applications to Tectonic, Induced, and Magmatic Sequences, 2018

Eyal Marder, PhD Tectonic Geomorphology; Advisor – Sean Gallen

• Dissertation: From the Colorado Front Range to Global Topography: Evaluating the Roles of Tectonics and Climate on Long Term Landscape Evolution, 2022

Anna Marshall, PhD Tectonic Geomorphology; Advisor – Ellen Wohl

• Dissertation: Islands in the Stream: Spatial and Temporal Patterns of Logjam-induced River Corridor Dynamics, 2024

Alexander Marr, MS Geochemistry; Advisor – Sally Sutton

• Thesis: Changes in Water Chemistry and Fluvial Geomorphology from Arsenic Contaminated Floodplains of Whitewood Creek and Belle Fourche River, South Dakota, 2023

Skyler Mavor, PhD Structural Geology; Advisor – John Singleton

• Dissertation: Timing, Kinematics, and Tectonic Significance of Strike-slip Fault Systems in the Atacama Desert of Northern Chile and the Lower Colorado River Corridor, USA, 2021

Connor Mertz, MS Fluvial Geomorphology; Advisor – Sara Rathburn

• Thesis: Restoration Prioritization of Upper Colorado Tributaries in the Kawuneeche Valley, Rocky Mountain National Park, CO, 2025

Aleksandra Novak, PHD; Advisor – Sven Egenhoff

• Dissertation: Paleozoic facies architecture in low-inclined mixed carbonate-siliciclastic sedimentary systems: depositional and tectonic signatures, 2019

Annette Patton, MS Geomorphology; Advisor – Sara Rathburn

• Thesis: Upland processes and controls on September 2013 debris flows, Rocky Mountain National Park, Colorado, 2016
• Dissertation: Landslide Response to Climate Change in Denali National Park, Alaska, and Other Permafrost Regions, 2019

Emily Perman, MS Structural Geology; Advisor – John Singleton & Sean Gallen

• Thesis: Quaternary Alluvial Lineaments in the Atacama Desert, Northern Chile: Morphology, Relationships to Bedrock Structures, and Link to the Seismic Cycle of the Andean Subduction Margin, 2023

Wyatt Reis, MS; Advisor – Dan McGrath

• Thesis: Quantifying Aspect-Dependent Snowpack Response to High-Elevation Wildfire in the Southern Rocky Mountains, 2023

Brianna Rick, PhD; Advisor- Dan McGrath

• Dissertation: Cryo-Geohazards in a Warming Climate: Geophysical, Hydrological, and Remotely Sensed Investigations of Glacial Lakes, Outburst Floods, and Rock Glaciers, 2022

Patrick Ronnau, MS; Advisor- Lisa Stright

• Thesis: Machine Learning Prediction of Deepwater Slope-Channel Facies Using Core-Analogous Outcrop Observations, 2024

Andrew Ruetten, MS; Advisor – Lisa Stright

• Thesis: Evaluating the Impact of Hierarchical Deep-Water Slope Channel Architecture on Fluid Flow Behavior, Cretaceous Tres Pasos Formation, Chile, 2021

Rachel Ruthven, MS Structural Geology; Advisor – John Sinlgeton

• Thesis: Structural Evolution and Rheology of the Paposo Shear Zone in the Atacama Fault System, Northern Chile, 2018

Juli Scamardo, PhD Geomorphology; Advisor – Ellen Wohl

• Thesis: Rivers and Beaver-Related Restoration in Colorado, 2019
• Dissertation: Form and Function: Quantifying Geomorphic Heterogeneity and Drivers in Dryland Non-Perennial River Corridors, 2023

Nikki Seymour, PhD Structural Geology 2020; Advisor – John Singleton

• Dissertation: Magmatism, Deformation, and Mineralization along the Intra-Arc Atacama Fault System, Northern Chile, 2020

Cole Sitar, MS Strutural Geology; Advisor – John Singleton

• Thesis: Geologic Mapping and Kinematic Analysis of the Independence Mine Shear Zone in the Sangre de Cristo Range, Southern Colorado: Extensional Reactivation of a Laramide Reverse Fault, 2023

Christophe Wakamya Simbo, PhD; Advisor – Sally Sutton

• Dissertation: Geological Control on Aquifer Storage and Recovery (Asr) Feasibility and Efficiency in Carbonate Aquifers (Edwards Aquifer and Floridan Aquifer), 2024

Joel Spansel, MS Sedimentology; Advisor – Sven Egenhoff

• Thesis: ‘False Bakken’ Interval- Sediment Patterns and Depositional Architecture at the Facies Boundary Between Siliciclastic Mudstones and Carbonates, Lodgepole Formation, Mississippian in the Williston Basin, ND, 2020

Siânin Spaur, MS Paleoclimatology; Advisor – Jeremy Caves Rugenstein

• Thesis: The Hydroclimate and Environmental Response to Warming in the Southwestern US: A Study Across the Mid-Miocene Climate Optimum, 2022

William Stansfield, MS, Hydrogeology – Mike Ronayne

• Thesis: Numerical Modeling Investigation of Long-Term Hydrologic Change due to Surface Water and Groundwater Withdrawals from a High Andean Headwater Basin, Southern Peru, 2024

Jens Suhr MS; Advisor: Sara Rathburn

• Thesis: Post-Glacial Alluvial Valley Dynamics of the South Fork Cache la Poudre River Valley at the Colorado State University Mountain Campus, 2022

Isabella Ulate, MS; Advisor – Jeremy Rugenstein

• Thesis: Investigating potential recharge to the Denver Basin Aquifer System from the Front Range Mountain Block using water stable isotope tracers, 2024

James Van Hook, MS Sedimentology; Advisor – Sven Egenhoff

• Thesis: Facies Architecture and Depositional Processes Influencing Carbonate Facies Belt Development Along a Low-Inclined Shelf, Huk Formation, Norway, and Komstad Formation, Sweden, 2022

Noah Vento, MS ; Advisor – Lisa Stright

• Thesis: Hypothesis-Based Machine Learning for Deep-Water Channel Systems, 2020

Camilla Warden, MS, Hydrogeophysics – Bill Sanford

• Thesis: Characterizing Seepage Pathways Through an Embankment Dam Using Electric and Electromagnetic Geophysical Methods, 2024

Joshua Watzak, MS Geophysics; Advisor – Derek Schutt

• Thesis: Pn Tomography and Temperatures of Scandinavia, 2025

Stewart Williams, MS; Advisor – John Singleton

• Thesis: Structural Evolution of the Potosí Uplift, Sierra Madre Oriental, Northeastern Mexico, 2019

Lucas Zeller, PHD; Advisor – Dan McGrath

• Dissertation: Understanding daily to decadal evolution of mountain glaciers in Alaska and High Mountain Asia from satellite remote sensing, 2024