Hi Robin
So I found a box but not a bag.
The box is 18x6x6in. Instructions to tape ends, insert bag, fill to mark and seal bag and other end. "2 Gals" on the inside.
Looking up the nsn I see the box is just box, cargo. Generic build. The bag is listed as a feature for "
fresh water supply for the north".
I do remember making snow defences with them but that wasn't their purpose to us on our dismounted Winter Ex's.
I did x3 Sovereignty Operations in the 80s with the SSF out of Pet. Ex Lightning Strike was the continuing name?? Impressive is all I have to say about our Rangers. Some memories include that on the miles from nowhere ski-doo/kamotik halt, them being able to produce hot tea from a Coleman stove in what seemed like 30 seconds. They'd pre-fire the burner too...to heat the generator just like we did. On the caribou hunt, 4 Canadian Ranger were the most g*d aweful shots I've ever seen. One year we brought 4 US Army Rangers. 2 in our winter gear and 2 in the latest US arctic gear. Then there were 4 in Canadian gear.
regards
Darrell