The natural-color Landsat 8 images above show the spread of mining activity along the Pariamanu River between May 2020 and May 2021, in a popular gold mining district in Peru’s Madre de Dios department. The Radar Mining Monitoring Tool (RAMI) identifies areas that appear to have new mining activity and examines their proximity to protected buffer zones, indigenous lands, mining concessions, and already degraded lands. “There are many systems that monitor forests in Peru, but no one else is focused just on gold mining. The research team is particularly interested in detecting small-scale, artisanal gold mining, typically operated by independent miners known as garimperos. Radar Mining Monitoring Tool data courtesy of the SERVIR-Amazonia Program.