Mount Sopris geophysical logging are light-weight, proven-rugged, industry-standard units.  Standard mini winches come with 200 meters (654-ft) of 3.17mm diameter (1/8") geophysical wireline, or 300 meters (1000-ft) of 2.54mm diameter (1/10") geophysical wirelines.  MX Series winches are user-customizable with standard sizes at 500, 800, or 1000 meters 3.17mm (1/8") wirelines.  The 4MXB series will hold up to 480 meters (1575-ft) of 4.76mm (3/16") diameter wireline (coax, single-conductor, or four-conductor) geophysical wirelines.