When walking to a beaver site, it's nice to have hands free. I mentioned carrying straps to Randy Volk in Massachusetts. Randy took more than 600 beaver in the 12x18x39 Comstock Beaver Cage Traps in two years, so he knows about carrying traps and beaver. He came right back, "I already put straps on my cages."
I had some bungee cords on hand, 36 inches long and thought I would give them a try to make a quick and simple cage carrying strap set up. I went to the hardware store and picked up some All Purpose snaps, then removed the stock factory S-Hooks that came on the bungees. The All Purpose snaps go on easily and stay in place when clipped, won't unhook like a plain S-Hook. The cage can be carried like a pack basket comfortably, out of the way with hands free. Since the cages weight but 22 pounds, the weight is hardly noticeable.
And, for those who want to haul in more than one cage, you can still carry one in each hand besides the one on your back at only 66 pounds, the weight of a big beaver. You could also pull 2 cages in a 2 foot wide sled along with a cage on your back.