Mount Sopris Instruments is a leading manufacturer of slimline borehole geophysical logging systems for the groundwater, mining, engineering, environmental, geothermal, and oil and gas industries featuring a complete range of stackable probes, rugged winches, versatile loggers, and best-in-class software. In 2020 we celebrate our 68th year in business! With over 50 representatives in strategic locations around the globe, and equipment operating in over 120 countries, we are always nearby for after sales support and service. Our partners, Advanced Logic Technology (ALT) in Luxembourg enhance the overall product line, and add European sales / technical support & service for all system hardware and software.