do you worry about losing all of your family’s vacation photos in a tornado or house fire? do you live in a bad neighborhood where burglary is a problem? if you feel the need to bury external hard drives or usb drives then vacuum seal them or seal them in ziploc brand sandwich bags with the double zipper. wrap the sealed drives in a cotton rag or a t-shirt and place them in an outdoor products “dry box” or watertight tupperware container and wrap the containers in copper mesh or aluminum foil to shield from emp.
wrap these finished packages in an electrical insulator like carpet padding and drop them into surplus military ammo cans and you’re good to go. it’s that simple. bury them below the frost line and your electronics will be absolutely safe and secure for many years. need more advice on caching underground? …check out http://www.howtoburyyourstuff.com