Call & Nicholas Inc., an internationally recognized geotechnical engineering consulting firm, has been providing a wide range of engineering services to the mining industry since 1980. Today, a full staff of dedicated geotechnical engineers, engineering geologists and technicians with experience in both open-pit and underground mining, provide expertise in all aspects of a comprehensive ground control program. The Instrument division of CNI, are instruments designed, developed and marketed by CNI to assist mines in monitoring real-time ground control. SlideMinder has been in service since 2003 and have had many improvements. A full service rock mechanics lab is available as well.