GIS Manager & Data Scientist · Chattanooga, TN

Data & maps.

I lead the Tennessee Division of Forestry's data team. We build the maps, workflows, and field tools that foresters and incident commanders use to protect millions of acres of forest and save lives.

  • 10Years in GIS & natural resources
  • GISPCertified · GISCI
  • M.S.GIS & Geoinformatics · Colorado School of Mines

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    Cartography & data science

    Collections of cartographic maps, spatial analyses, and interactive visualizations.

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    Apps, dashboards & code

    Colin Stiles

    About Me.

    I'm a GIS Manager and Data Scientist who turns complex spatial data into decisions people can act on. I lead the Forest Data & Analysis Unit at the Tennessee Department of Agriculture, Division of Forestry, where my team supports forest management, wildland fire response, state forest administration, and nursery operations across the state.

    My career is built on reliability at scale. I've collected survey data for timber sales and environmental permits, administered enterprise GIS on a national scale, and now set statewide data standards and QA/QC for forest inventory, burn history, and land ownership.

    I believe the most useful solutions come from rapid iteration, transparency, and reliability. As George Box said, "All models are wrong, but some are useful." My job is to make sure every model I build is useful, reproducible, and lean enough to adapt as goals change.

    • ArcGIS Pro / Online / Enterprise
    • QGIS
    • Python
    • SQL
    • PostGIS
    • JavaScript
    • Arcade
    • MapLibre
    • Blender 3D
    • Field Maps
    • Survey123
    • GitHub CI/CD
    • UAS
    • GPS
    • Interactive Visualizations

    My Experience

    1. Sep 2025 – Present

      GIS Manager & Data Scientist

      Tennessee Division of Forestry

      Lead the Division's statewide GIS and data program, supervising a technical team, managing UAS and FIA, and administering ArcGIS Online and Enterprise for 300 users.

    2. May 2022 – Sep 2025

      GIS Lead Analyst

      Kimley-Horn & Associates

      Lead technical analyst for regional GIS work across engineering practices, automating analysis with Python and SQL and administering ArcGIS Enterprise.

    3. Mar 2019 – Oct 2023

      River Lead & Guide School Trainer

      U.S. National Whitewater Center

      Managed raft department operations, trained new guides, and enforced on-water safety standards.

    4. May 2020 – Aug 2021

      Pre-sale Forester & Wildland Firefighter

      U.S. Forest Service

      Surveyed tree stands with Trimble GPS, mapped timber units in ArcGIS Pro, and served on call for wildfire suppression across the Pacific Northwest.

    5. Feb 2016 – Feb 2019

      Infantry Team Lead (11B)

      U.S. Army

      Led infantry teams of up to 10 soldiers and navigated with GPS/GNSS and topographic maps.

    Download full resume

    My Education

    1. 2023

      Master of Science in GIS & Geoinformatics

      Colorado School of Mines

      Graduated with a 4.0 GPA while working full-time at Kimley-Horn. Coursework included Data Science for Earth Resources I and II, Advanced Planetary GIS, and Applied Remote Sensing for Geosciences.

    2. 2022

      Bachelor of Science in Geography

      University of North Carolina at Charlotte

      Graduated top of class, summa cum laude, with a 3.96 GPA. Coursework included Environmental Modeling with GIS, Fundamentals of GIS, and Regional Geography: Natural Hazards and Disasters.

    3. 2022

      Bachelor of Arts in Environmental Studies

      University of North Carolina at Charlotte

      Graduated top of class, summa cum laude, with a 3.96 GPA. Coursework included Freshwater Ecosystems, Urban Ecology, and Environmental Geology.

    Get in touch

    Let's build something useful.

    Questions about a project, a collaboration, or the work above? I'd like to hear about it.

    colintimothystiles@gmail.com

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