therealdeal, in such conditions, I personally wouldn't trap.
It's weird to me how as hunters, we want clean, quick kills, and we are quick to excoriate and condemn hunters who take low-percentage shots and get bad results; yet people in a subset of our same group seem to think it's ok to leave a live critter in a trap for extended periods.
This is a dichotomy I don't quite understand.
I certain parts of Alaska as one example, these traps are in more remote, harder to reach locations. As well, they rely on these traps to feed their families(whether with the meat or from the money the furs produce).