Optech is the world leader in the development, manufacture and support of advanced lidar and camera instruments. Optech offers both standalone and fully integrated lidar and camera solutions in airborne mapping, airborne lidar bathymetry, mobile mapping, terrestrial laser scanning, mine cavity monitoring, and industrial process control, as well as space-proven sensors. Developed for underground mining environments, Optechs Cavity Monitoring System (CMS) quickly collects thousands of accurately located points that are used to determine a cavitys size, orientation and volume, and to create detailed engineering drawings. Optechs tripod-mounted ILRIS Terrestrial Laser Scanner, with a 10-kHz data acquisition rate and a range of over 3 km, is especially useful in open pit mines where accurate ranging, robust field performance and portability are crucial. Optechs Lynx Mobile Mapper has also proven effective in mining applications. Mounted on a moving vehicle, it collects geo-referenced data sets in a fraction of the time required for traditional surveying methods.