A geophysical investigation was performed at a closed landfill site near Oak Creek, Colorado. The goal of the investigation was to confirm that landfill material was still contained within the approved landfill boundary. The landfill was capped with dirt and soil decades ago and is now overgrown with grasses and brush. The geophysical remotely sensed method measured the electromagnetic properties of the subsurface and allowed the investigation to occur without destroying the recent growth. A sensor induced a magnetic field and measured the conductivity at depths ranging from 2 to 20m beneath the surface. The resulting data showed that there were two distinct landfill cells within the footprint of the landfill and no indication that the material was migrating off the site.