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:
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.
GIS manager and spatial data scientist responsible for managing statewide Division data programs and ArcGIS software administration.
GIS lead analyst responsible for managing geospatial portions of AEC projects and managing the South region's (TN, GA, MS, AL) Enterprise administration.
Raft guide, guide school trainer, and manager overseeing daily rafting and whitewater sports activities.
Conduct forestry surveys and prepare plots for timber leases. QRF wildland firefighter for fires throughout the Pacific Northwest.
Graduated with 4.0 GPA while working full-time at Kimley-Horn.
Graduated top of class Summa Cum Laude with 3.96 GPA.
Graduated top of class Summa Cum Laude with 3.96 GPA.
A dashboard for analyzing my code metrics using `cloc` and `git actions`.
View ProjectA Python pipeline to automate real estate data processing and analysis.
View ProjectA web application for visualizing and analyzing Winter Storm Fern imagery and damage assessment data.
View ProjectAnalyzing various interpolation methods for mapping Ogalalla Aquifer groundwater levels in Nebraska.
View ProjectA fictional marathon scenario on Mars as proof of concept for cost distance analysis.
View ProjectOfficial public use and ecological area maps for Tennessee State Forests, including Bledsoe, Chickasaw, and Wolf River.
View MapsImagery-based study area, fire, and tree species mapping for the Clearwater, Idaho region.
View MapsNebraska and county-level groundwater modeling of the Ogallala Aquifer, including spatial interpolation and change over time.
View MapsEarthquake, shake intensity, and cyclone track analysis for the Philippine Islands.
View MapsViewshed analysis, stream crossing impacts, and prioritized tree-trimming maps for site planning.
View MapsTerrain visualization, hydrologic subbasin cartography, and 3D solar shading analysis.
View MapsOut-of-state wildfire deployment tracking for the Tennessee Department of Forestry.
View ProjectBurn ban status dashboard for the State of Tennessee.
View ProjectA Python notebook to inventory an ArcGIS Online organization, analyze users, groups, and content, and publish the results for reporting.
View ProjectYou can reach me via email at: colintimothystiles@gmail.com