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Colin T. Stiles, GISP

GIS Manager & Data Scientist

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About Me

Colin Stiles

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 Division of Forestry, where my team supports forest management, wildland fire response, state forest administration, and nursery operations across the state. I architect and administer the Division's ArcGIS Online platform for 300 users, automate recurring reporting with Python and SQL, and put mobile data collection in the hands of field foresters and incident command teams.

My career is built on reliability at scale. A decade of experience spans the field and the enterprise. I've collected survey data for timber sales and environmental permits, administered enterprise GIS at an engineering firm, and now set statewide data standards and QA/QC for forest inventory, burn history, and land ownership. I pair a GISP certification and an M.S. in GIS & Geoinformatics with experience supervising a technical team, managing grant budgets, and coordinating with state and federal partners. The goal is always the same: reproducible, efficient results that people can trust.

Philosophy I believe the most useful solutions come from rapid iteration and transparency. I avoid the "black box," where logic gets buried in over-engineered models. Instead I deliver early insights, then refine them through feedback and professional judgment. 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.

Tech Stack My daily toolkit includes:

  • Geographic Information Systems: Esri suite, QGIS, MapLibre.
  • Programming: Python, SQL, R, JavaScript, HTML/CSS.
  • Visualization: Blender 3D, Chart.js, Dashboards, Experience Builder, InstantApp, StoryMaps, Adobe Creative Cloud.
  • Modern Dev: GitHub CI/CD, VS Code, RESTful APIs.
  • Field Data Collection: Field Maps, Survey123, QuickCapture.
  • AI: Google Gemini, Vertex AI, Codex, Claude Code.

More than Data

Before I was a Data Scientist, I was an Airborne Reconnaissance Infantry Team Lead in the U.S. Army, a background that instilled in me an efficient execution and positive energy mentality I bring to every technical team I lead.

When I’m not working, you will likely find me disconnected in the great outdoors. I am having the most fun when I'm whitewater kayaking the Gauley River in West Virginia, gravel biking in the Appalachians, climbing the Lily Boulders near Obed, scuba diving the Racha Islands, or hiking around the Pacific Northwest. I live in Chattanooga, Tennessee (the *self proclaimed* geospatial capital of the world) with my wife, Jess, and our two dogs, Willow and Coconut.

Experience

Tennessee Division of Forestry

Ellington Agricultural Center, Tennessee

GIS Manager & Data Scientist

GIS manager and spatial data scientist responsible for managing statewide Division data programs and ArcGIS software administration.

Kimley-Horn & Associates

Chattanooga, Tennessee

GIS Lead Analyst

GIS lead analyst responsible for managing geospatial portions of AEC projects and managing the South region's (TN, GA, MS, AL) Enterprise administration.

U.S. National Whitewater Center

Charlotte, North Carolina

River Lead & Guide School Trainer

Raft guide, guide school trainer, and manager overseeing daily rafting and whitewater sports activities.

U.S. Forest Service

Umatilla National Forest, Oregon

Pre-sale Forester & Wildland Firefighter

Conduct forestry surveys and prepare plots for timber leases. QRF wildland firefighter for fires throughout the Pacific Northwest.

U.S. Army

Fort Bragg, North Carolina

Airborne Infantry (11B)

Reconnaissance infantry.

Education

Colorado School of Mines

2023

Master's of Science in GIS & Geoinformatics

Graduated with 4.0 GPA while working full-time at Kimley-Horn.

University of North Carolina - Charlotte

2022

Bachelor of Science in Geography

Graduated top of class Summa Cum Laude with 3.96 GPA.

University of North Carolina - Charlotte

2022

Bachelor of Arts in Environmental Studies

Graduated top of class Summa Cum Laude with 3.96 GPA.

Projects

My Code Metrics

A dashboard for analyzing my code metrics using `cloc` and `git actions`.

View Project

Real Estate Python Pipeline

A Python pipeline to automate real estate data processing and analysis.

View Project

Winter Storm Fern App

A web application for visualizing and analyzing Winter Storm Fern imagery and damage assessment data.

View Project

Analyzing Groundwater Levels of the Ogallala Aquifer

Analyzing various interpolation methods for mapping Ogalalla Aquifer groundwater levels in Nebraska.

View Project

Mars Planetary Mapping - Web Application

A fictional marathon scenario on Mars as proof of concept for cost distance analysis.

View Project

Map Gallery: State Forest Public Use Maps

Official public use and ecological area maps for Tennessee State Forests, including Bledsoe, Chickasaw, and Wolf River.

View Maps

Map Gallery: Remote Sensing - Clearwater, Idaho

Imagery-based study area, fire, and tree species mapping for the Clearwater, Idaho region.

View Maps

Map Gallery: Ogallala Aquifer Groundwater Analysis

Nebraska and county-level groundwater modeling of the Ogallala Aquifer, including spatial interpolation and change over time.

View Maps

Map Gallery: Philippines Geohazard Assessment

Earthquake, shake intensity, and cyclone track analysis for the Philippine Islands.

View Maps

Map Gallery: Forestry Site Planning & Viewshed

Viewshed analysis, stream crossing impacts, and prioritized tree-trimming maps for site planning.

View Maps

Map Gallery: Terrain, Hydrology & Solar Shading

Terrain visualization, hydrologic subbasin cartography, and 3D solar shading analysis.

View Maps

TDF Wildfire Deployments - Web Application

Out-of-state wildfire deployment tracking for the Tennessee Department of Forestry.

View Project

Tennessee Burn Ban - Web Application

Burn ban status dashboard for the State of Tennessee.

View Project

AGOL Admin Insights Python Notebook

A Python notebook to inventory an ArcGIS Online organization, analyze users, groups, and content, and publish the results for reporting.

View Project

Various Medium Articles

Various Medium articles I have written.

View Medium

Affiliations

Skills

Get in Touch

You can reach me via email at: colintimothystiles@gmail.com