I think it was low 20s if I remember correctly. It has been useful calibrating for hiking gear I would (or not) need on the trail, whenever I get the chance to thru.
But without thread drifting too much - that snow/sand mix is TREACHEROUS. I know yak trax would be worthless and I am not convinced mini spikes would help much, either. The spikes on my crampons are in the 3/4 to 1 inch range and I can hear them crunch ice. Probably on the heavy side for a thru though.