Chasing Shadows: Geolocate Images with Bellingcat’s Shadow Finder Tool

This article presents Bellingcat’s Shadow Finder Tool, which leverages sun angle calculations from measured object heights and shadow lengths at known times to dramatically narrow potential geolocations for images. It outlines measurement best practices, common pitfalls (perspective, lens distortion, surface level), and demonstrates how using multiple images at different times can intersect candidate regions to pinpoint a location. The piece is a practical OSINT geolocation tutorial rather than a cybersecurity incident report.