Years ago Jack came across this load that fell off a truck north of Coldfoot. Click on the first one and scroll to the right. More info on the captions.

Jack is pretty sure this is an “explosion box”, a portable unit that’s probably used as a break room next to a rig most of the time, but it’s most crucial use is as an explosion shelter. If there’s a an explosion individuals can stay in it for protection. It’s actually upside down here and the damaged attached boxes are probably heaters or ventilation units.