Very Low Frequency Electromagnetics (VLF) is a geophysical ground probing technology that utilizes VLF signals in the 15 to 30 kHz range normally used for communication with submarines. The signal generated is suitable for making geophysical measurements globally. VLF is an electromagnetic method that relies on transmitted currents inducing secondary responses in conductive geologic units. A VLF anomaly represents a change in the attitude of the electromagnetic vector overlying conductive materials in the subsurface. Very Low Frequency surveying reached a peak in the 1980’s and 1990’s, but there are few VLF manufacturers today. GEM has continued to invest in the technology with a numerous refinements. Now with a very light weight portable backpack sensor, the user can select up to 3 stations and readings are measured automatically. By attaching a magnetometer system, one individual can collect up to three surveys at once. Today the method is having a revival, thanks to both technology improvements and software developments. It is a very inexpensive means to collect high quality and informative information.